Tennis is a racket sport that is played either individually against a single opponent (singles) or between two teams of two players each (doubles). Each player uses a tennis racket strung with a cord
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4507237989b1226606718a7b2165dcd3ac074f6a59506d93089df904294b38. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13d6860e-c704-4a23-aef9-01cb176d957d.json and https://artists.proofprofile.net/proofs/artist/13d6860e-c704-4a23-aef9-01cb176d957d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee61ed15d0a034f69dd3a5726966480702716185e094184a00eb02e717d1c30e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79bec66da2ae80d611da6fce68ac3a4d8e83630a48c5647165bf32d11959bd6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669b79dea27d8ac987de6c944379892c3a31fe8ecbaf390751bb9bb8f48846df. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce1e15b3e8734d89deee9a98ba2038261d48fa936fd651a88cec7d869582f99. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab7d5fa1244b1e7fa167739b0797c79172a5e80ae26f23871e3777f5a173f4e. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946caf21b55759c4f54deb4440d82dfe0b82c6372fb0b2becccbaf1002393791. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2112b8f3f3a5e0d6dad671347b259083fb18127e18a8231cd7e3589324f2e2. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e93bb624534e7044ca8454f02bcaaae8e5f5fd793773c9bd894938f9a4ab1d3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee61ed15d0a034f69dd3a5726966480702716185e094184a00eb02e717d1c30e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79bec66da2ae80d611da6fce68ac3a4d8e83630a48c5647165bf32d11959bd6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ceae232376f161e071c7f2feb05c989301774d1bc21936769bbf2370e117d4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:43:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71023607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f68fc26fa6fc745030606a4fa1ef827f8cc6a31efdcae70d73b1fa564cc131. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71226510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e1612bf4b3a733e4a365eb19acedf21157617399a0f90d53a22d5ea741efb9. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71226505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e90c9f76ef856b753c9cd5e5cfebcd95471312e8dcba72fdb8b6e83fef92a7. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71226506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116a16acdb5460c4525941789f7d3342a527d10180e8115ae942c7751d14b7cb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71226507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69489a40a4c484c73f7c5772a81af8709e84ddc1b4537230e89eb5f96a8bb3e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71226508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee4da37f533729f807d4a4e71bdc02fc56dfacef1a7235aed39ea3cb48dd490. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71226509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f68fc26fa6fc745030606a4fa1ef827f8cc6a31efdcae70d73b1fa564cc131. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71226510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89060d0a42a56263f029569f71cf386f9e2b4909b7bb080deac9f0d9ebccdd7e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFP71226512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9be06343d4388c092abfed868a779cca470c337bc09144ad21000bcaa7978bd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661320401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59da6137e84277eeee04b872ac656e974e1167b63f25ca2a64d2974c419b06a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc22e69189300532913909eef648dab1535243c8709977e60827bdc1f6bcef67. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661320403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9be06343d4388c092abfed868a779cca470c337bc09144ad21000bcaa7978bd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661320401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3463705095f39d20c88ffc98b1ccc81c53590b476167e6b5ed299e0e4026809. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661320404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b295d49293c6c49e6984512de1cc50eb7a833a20be6f3b0e91279ecc1c0e94. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:41:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9a0439d28e0e70cdae9190f8923dc937e933f0ed7eb11b5fd0048851ae8e54. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecde93882214b547ce488da787a54dd7a383ddee993010d593942d585f4110d4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741ba675e15cd12ac327ef931e91e399f9b1ddb135c4c3ef07e73693f180a049. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ecda47b5dfbc6c2959e4924a423a19c289d1c9c2f73e900ae598566a2001b6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624306caf206dc2c8722ea1479e319306a497e6f0449fc5028aea8844b3f3a24. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e656b0e29db483e5c76de1c1da418dfcdc44e7b04876f9aa72182422d2241dd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661320405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2960f538fc59e77e8b1d534788a2b37acdf3ce48b7cc6dfccfb970fc3c340b. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661511114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7673258855c64d9919edd2395eca3fdd1667bb63e4286344100a65b02788f4b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8ed4beea85ae626d6db67dcb892dccd98889d70dbc99901502041184149db1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880549da2bcfb3ad276beee7da5b94823b8032e035f7ab68bc0c0720d846a5b5. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ecbba27c53c302468349ea323ae26b8cb8737b9a5e8859f6455f02064e3a71b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59da6137e84277eeee04b872ac656e974e1167b63f25ca2a64d2974c419b06a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9a0439d28e0e70cdae9190f8923dc937e933f0ed7eb11b5fd0048851ae8e54. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecde93882214b547ce488da787a54dd7a383ddee993010d593942d585f4110d4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741ba675e15cd12ac327ef931e91e399f9b1ddb135c4c3ef07e73693f180a049. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ecda47b5dfbc6c2959e4924a423a19c289d1c9c2f73e900ae598566a2001b6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7673258855c64d9919edd2395eca3fdd1667bb63e4286344100a65b02788f4b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59da6137e84277eeee04b872ac656e974e1167b63f25ca2a64d2974c419b06a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741ba675e15cd12ac327ef931e91e399f9b1ddb135c4c3ef07e73693f180a049. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ecda47b5dfbc6c2959e4924a423a19c289d1c9c2f73e900ae598566a2001b6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661411010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563248b4843cfcda2cccb56b3cf1bd5a62c55dafd53e9dd32cadbbb401ab54d1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5TF1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a97afeecfe2121cffc00bbbe3e82b0d931615e836ba4853c145a42f9c49ceed. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5TF1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a97afeecfe2121cffc00bbbe3e82b0d931615e836ba4853c145a42f9c49ceed. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5TF1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7508f4b201e5f5f13097733747a38fb08fff64a0e67e4a056e95eb10cbe83549. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5TF1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2be57c43fe82ed7a9fb3c1afbe7d5818a1c9ab1db6e375dbd73381a91632656. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5TF1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5a923aaa8a29dc3c05eb2925d5775ebd9794be0a0865e252c157bbc7debac5. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:31:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5TF1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829c1c567560e1b5966c3f929422fd165af8d2343b77b89d2911282c37e73450. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FT1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67004081c52c739ff92d8691d737744eae7aa13909faf2871d9fa70b0e5d112b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM99V1812503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf39dff827741b4d209e14a5e5dc8655a672b10445ee2a560cbff555a76a96b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM99V1812504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73325b7d8c09396912d8c9752c665c6bd276a9900218d40ea8fc3082a004db2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM99V1812505.
Needle and a Knife - Audiotree Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd6b1b00a834277156fe682e0c04bae24e7af55c31234488ad8a4e06363c5a1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM99V1812506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339235d0711f69a6664c6cd6829100be8463fa6219e3c6e18005eb5cba42b73a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:47:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFLB1900930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696ff391c4ad2726093b83617510fff814c40cbf8cb5a51559382169392e6954. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMB622120001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9be06343d4388c092abfed868a779cca470c337bc09144ad21000bcaa7978bd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMF661320401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9fd5c7bba42a015896cc19577b766697cfa8a9ef2992c1cd3603e024eb368c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2414851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696ff391c4ad2726093b83617510fff814c40cbf8cb5a51559382169392e6954. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMB622120001.