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 0x6b5cc9bfe2ebb726a4c608223a3244483edfde4ecb9536114a31613865776c81. 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/bd3a5d47-70cf-402d-98a8-2a644b06d119.json and https://artists.proofprofile.net/proofs/artist/bd3a5d47-70cf-402d-98a8-2a644b06d119.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 0x50e261b98202b605a402d155e28a5ec3b4558292d31dcb35e8e55309f7462bee. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHNA2281623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde1439b457f53c6e35595ed897ea923c4d31c5e42b00c13c23c77edf0fe9c15. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:20:03Z), 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/QZHNC2215684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0e9a45fc20bc9b03e159ee613f83a99c07c3795064fd351a61714b4fdee9b2. 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/QZK6M2229093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cbc0721942f8b4afcca62fb487d2189ef9be9d2f6363b051d7e665f9f2ff15. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZK6M2229094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9fd35b0b4ab4bc714625272caf78c4fa760bb27f4a98c53111b4e2f02de14c. 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/QZK6M2297004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac3bb64c173ecc7b859bfe2189bd3bb42693bae23aee8b804eb0ea850e6b89e. 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/QZK6M2297006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb76a85586dacc8682627680c53098bac2c181b0a9daf34558335b18a5407c57. 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/QZK6M2297007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd881fae3d86e631b9a76a9140025430645d03dae2b049b29eff03a1c984cf45a. 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/QZK6J2214917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b1f9fb031aa63866d66bde4f23c43f24d612ab4abef4b421ea0c640d0ba5ad. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6J2281439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c836ecf1d066c96a2c044982824931a9462c6961d8dbf25e6cd97715f95b8a. 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/QZK6J2281440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f55cbfeba5c13772c4e0988f9fc4f046704abb6c9c92b87d04b1bdbab91b98. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZK6J2281442.
Corazón Entristecido - El Condor Mensajero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d18b7be97bd2d88a47cb98b5f10d06825b4bdb4348f81744c146b4427c4aba. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZMEN2258196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e33fd1352bc5f34b6af171f318bed3dd2cca200c18dba5d45f79f18a48d523d. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:02:36Z), 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/QZNWQ2266403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45fbf24c88d08432c0dccdf8fb2702f750ee5f23543410fc3bbce1fc7bcdb3e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZNWU2287372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef24c8128201280cf7c92493bccb7801535f547c4871e678b0131ad9abe81fc5. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:03:48Z), 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/QZHN42352031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8f72db4f19af6f36b8f925168c11047f136efef9fb1065ae5bd8b1cd6d3731. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZFZ72476062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57eeb1ffa56e3b8350d33703bdc206a86f2f3161efc5141b9d5e5e574d89b4ea. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:40:27Z), 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/QZMEN2411894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f74520078d6547ecce1674c46382893ee5048cf3802e438152bb2f533c0ebad. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZMEN2411895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa215bde929cc03af496d7fedab75933a90face57dc38c68ffd875086830f9b3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:41:57Z), 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/QT3EY2445010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8088b4735be02e72c9cad661b4abca2836236b718a3355e2124fafe2315821a7. 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/QT3EY2445011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccd703a4b13385a6581e397b22778a9cbfa4aff0615c1dd64889763544bd811. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:07:39Z), 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/QT3EY2445012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f55cbfeba5c13772c4e0988f9fc4f046704abb6c9c92b87d04b1bdbab91b98. 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/QZK6J2281442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253f10aa885557a036b4636e63adb500a08e3afa9a8638c6ba782a07e79477ce. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZK6H2237324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e261b98202b605a402d155e28a5ec3b4558292d31dcb35e8e55309f7462bee. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:33:54Z), 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/QZHNA2281623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f1c75256bd11464a388824fa3045a761356b6e700d25607ed09b118c7ca396. 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/QT3EY2445013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d525aaddc735f3aa877b515b412e991d06530cfa877b95366ece78efaabf59. 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/QT3EY2445014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53cb4a3ea1a95bc448c01d8a646943f903908bb3b5c6808a7f4a6573beb1c554. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QT3EY2445015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d63db90065164e8b3f9efa1f00c3a873158cd8eb6d0fb1718d0a174338bc60d. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/QT3EY2445016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d088958a06464ad0a41292aacab80a55451e80dbed809425b57fa53d1270a9. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QT3EY2445017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7da2ab662fdc2957eb3ee980481497e2408714521f6126ec4ac7fce01d20d58. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:22:31Z), 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/QT3EY2445018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dec2dee687c0f52a2d17a7c6a82bbcfc4ede460ca00f46de3bc55fea233b1e. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QT3EZ2497929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebe6795852f1aef519f25a93d7414a74a9d9ba780ef5a1d8281ef5bf09bb77c. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QT3EZ2497933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d973aee2aa6c71ace24306699cdb3ad651a544dc910dfb1d4660fe8e51895d. 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/QT3EZ2497934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d765b66d934ef806fd94cd9245abc46e9c42ec31c90e2553ece37738b605f5. 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/QT3EZ2497935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a61730fdd28bc74b1a096c655aeeb13e2e623539269c99fdbc20cf5c965f91. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QT3EZ2497937.