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 0x5dea574ae5934f16d98dedf02749ccf62a90579b8f7e984a937907c4809c783a. 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/e10df867-3207-4db0-bb27-472f45bb2af5.json and https://artists.proofprofile.net/proofs/artist/e10df867-3207-4db0-bb27-472f45bb2af5.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 0x751ed82732e9f7c39e0c5811cfde6f91319c3b8951408b300ce209cb7b37c4b1. Chain 2 (Bitcoin): anchored in block 957579 (2026-07-11T14:35:38Z), 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/QZLL92358307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd517c92cbb69115dd1427dc89f4d92bc55a53bf5d3cefb6987bcc7ace3a823db. 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/QZMWW2348683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e86bda4c95df58eec99a53dd2b2bc0ccbc345ab753eacf9972b0a4bd46ff77. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:09:32Z), 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/QZNMU2300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0103e2fb63ca8084689c26497ca77ce1b6fde2d1c04da430cd7bfedd930a2d6e. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/QZNMU2300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c14af10d77eca864f805b398720101c16b43246e4d638f21566cf0d17cb04bf. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QZNN22316987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54ebd0c84f2ed5bd29b08c771b691aab91f9b7174a5e7a2c8d9f8269e68c49b. 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/QZNN22395654.
Top 3k II (feat. Lul Bellside & ShotstaaFoe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f387e22c47ac405f5b1368c9d56b8743062e30975442c846e368848a621229. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZMEV2400817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9a6bbd4ae24b24b64b1c712bcd8375a419bb2937c08bc0bd4d3c7a590914c0. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/QZMEV2400832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cea725392ef51eebdff57cbb25f64b38addebbc270a71f2a39da4fb28f6544. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNB82444112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcbfbefc2efec22d3beaa07b986bb3ff86013b80ee34926d6491d127b525a83. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:43:09Z), 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/QZNB82451447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a756a065a14621215e7e53d7929aceb8617f3b64c65d59b9a9db469104232b. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZNB82451448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c518fc6a04bdb6b5f3e94a7fc12a7a7c2df5043f0c1e44775574fef532eddf. 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/QZNB82451449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d98bf281d71f5fd70b1ca9f8135fcfc37a670cd7854655e11abad6ce872a69. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USLD91762266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ea9d13020a12760b2bda1cca44e70d82bec190f51ad76c64a0ae7858be4097. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:53:48Z), 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/USLD91764956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183666c3a5367c7d22a97d93c39ef289deed4b92ac85f3f8ec762bf4cf945278. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USLD91764960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0add7b8ebd33819981d032fc33d5a5e909cfac20f078c1b41479426caf7847a1. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/USLD91767391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13029661878aa30d9ec54786cf32bf18243d61831005bf53dea7ef70157c97b5. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:06:41Z), 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/USLD91767392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccd4c97d7a0d5f77faac927d9cfb63c630a62a6f97275075b72136f35bc8a68. 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/USLD91767393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a41bc2b9c122df1257d115c21359bc73dbd83cb20d2e7f96de122fc4e25d0da. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USLD91767394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc711ef07c832f8e7aa1c624f2e6b3fa886fe41a8dd406200e73cd070da715a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:44:33Z), 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/USLD91767396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f6df38a4aa2cab347f80cdebb487a1c4b4e86c0f327b308637b1ef4bd6a230. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USLD91772140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a89adaf1be836d19cf34fdb2c01fbe283d303f1cafc81dcd305b294e4cbfcca. 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/USLD91772141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd440d6fb5ffa19dcac496812e55a951ac04884625bc92aa3a73a013a0c45346e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USLD91772142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424101a2245cb64e055ca046b1f2020ba3d35707f247276cd39df9975104661b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USLD91772143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e12d18f280d44cd25461d950dc776af11563f1b5c54a062c94e03dea025ea5. 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/USLD91772145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b58d55fd16428392ca07127bbb311f9e71f04e2474602c5cd2fb3a74ab870f. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USLD91772146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ef0b3f58f25d1701424ce7cc5725c1dde8af38fe0d123bc74af632029df94c. 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/USLD91772147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab396f871d567cd587bf6755ff276c7760c7100c489a39468726065685f75aa. 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/USLD91772148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff6e0d25abff5147aac836794b1d1257cdd869009e43b1b040579a6b33f9186. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USLD91772149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9d63f0f3bea24f909cdf28d3054225c10fcc54afca38a3da57a61b78cfc71a. 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/USLD91772150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0b70b6c94429d17f775c276233e83fd40b027b3d044dc843a238b48435c72a. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/USLD91776455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb146e623603799c5523ec8611cef8a4472191632db180e0e51b3e244a3f29fc. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:48:25Z), 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/USLD91776456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c85e286ca7e8beb4531ff41e102005391b801c42a75527d9c3f866dd7198ffd. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:40:40Z), 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/USLD91776457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a2b72718e007826cce8fe7b2c86a12dffb2d051367a43ac760ecf823b23c6a. 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/USLD91776458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ce300b0ca545bc01bf01dff44a6dadd061d0f6acd2a8143d3a3a1213246018. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/USLD91776459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b93a1645a0226fc7f5b7f43a5bf97f4d39849236da801974e75af035a90e8fe. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USLD91776460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea633941145079bc45cf14783cefe0a0f015a62b6f96dd7e964267387089ca24. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USLD91776461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb2f82c637786c9ade93ebddb4b87b06b68e86401ce36ab4884e6a32f585a06. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/USLD91776462.