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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 0xa86cbafcdd02b0a772ff32e2ec38e45cbbe1ea03fdb8bfdf4b4c10f973d07607. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/297f05c9-21be-4744-aaf1-5f19a1fa6576.json and https://artists.proofprofile.net/proofs/artist/297f05c9-21be-4744-aaf1-5f19a1fa6576.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 0x83cca23fe17333748062b657e80489f89f68af45f9ec1615e7d603e856925d96. 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/MYUM71501241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa89718060829c8fb23cdde2938b738683802a6ec998ccb1e2f507b76637e9e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYUM70900553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6336791c46a67fd4c478ea014db9fea39277dd802a5f7733f347a71ed6469c3a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM70900556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca867325c6ee06257c7cb52c392e8dcc69f3e43286c0ea4f51031f5ace6e9279. 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/MYUM70900544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0258caff62935fbffc45b58175dda8192550ebc97a307d8b509aa52dd555f11b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/MYUM70900545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e52849ec5ba4e5bede790ba1fe0852c2b5b372ff12a41cebd160ee6834225d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYUM70900548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4aaed60d6c75d3b0de7a3aac87768d7946e08e9562fb8129d7084b18356130. 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/MYUM70900550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae0bde917c7085805bf53202f61bad55740bfc5615ef9b97886029e1683688f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYUM70900567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe928dbfcd0786526da7c50c12040b02b505c0b159e5ba28fda9bfc66bf635ea7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYUM70900552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28035683603f0131a7f12ab65b37e56bc6cbfd95e3d9b4e1a8fdb7f086ff530e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM70900547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae0bde917c7085805bf53202f61bad55740bfc5615ef9b97886029e1683688f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYUM70900567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a576ca5bf885f1751a3726914fb31d2d21d99230f8e9cc42acf033a7fb0d09. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYUM70900555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca867325c6ee06257c7cb52c392e8dcc69f3e43286c0ea4f51031f5ace6e9279. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYUM70900544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6336791c46a67fd4c478ea014db9fea39277dd802a5f7733f347a71ed6469c3a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYUM70900556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0258caff62935fbffc45b58175dda8192550ebc97a307d8b509aa52dd555f11b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYUM70900545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2223bf3eb44e911c2ead2057feaf2fa0cbeb53577174037b0cde3a7d699194. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYUM70900557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35b8ab7586dc244d0473a42cc2634c68daf8c4dbe204142f71cc3183b81e4cf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM70900558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28035683603f0131a7f12ab65b37e56bc6cbfd95e3d9b4e1a8fdb7f086ff530e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYUM70900547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e52849ec5ba4e5bede790ba1fe0852c2b5b372ff12a41cebd160ee6834225d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM70900548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7218ccc79f43126dbbbdb23af77fab13a5c01de27e69637d0d3d4146815e0f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/MYUM70900561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4aaed60d6c75d3b0de7a3aac87768d7946e08e9562fb8129d7084b18356130. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYUM70900550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe928dbfcd0786526da7c50c12040b02b505c0b159e5ba28fda9bfc66bf635ea7. 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/MYUM70900552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa89718060829c8fb23cdde2938b738683802a6ec998ccb1e2f507b76637e9e. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/MYUM70900553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c60b1273443e9c28116af13204175cecb54bdac8abd4b72e8cc060270cf3b98. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYUM70900565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaf89c26f81df796e6872cffeaa0041e39269c9743cbb42899ed3241fb7de2e. 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/MYUM70900554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c362563ebb4e6753af439c00cfdbaae6fe2192b79216cce190d8b0fedba3f4d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM72300228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13eb6acfabb075257b01ff4e09a4ad2de88a27d94cf62ac4da435352a7423b41. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYUM72200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc6e83f6be07866e21167e14afbf9fa04af2712c495071bd8ae8b5213353c73. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MYUM72200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146a1c3e7fbf0e9a9be811a4b66a306789477dc9449db6e96ffc34d9674f3fbd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM72300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad39d609435b13b06b5ced90e93c79108f30eda8cc2311007af4e964f0a0d2e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYUM72300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05971d52cd04e20b08e5743b414b8b6231cce5fdd76b917a88a71c415dbf884. 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/MYUM72300213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fc05c56301be2f27db577dc8bcff2bd4c5a7e34b4655138e7b03cca9c79ea2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM72300215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff17faf47c5173a9174f49d5d77c83c3a717e3f64d77dcb66f6a36848368966b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYUM72300216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96dd465be0c4197b3c8934befc7cfeb8b850406bd47bb2d5fbc0e9f81a0d865. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYUM72200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eec258a8b84cd2058331a3772a0844575af3f53f7dc9497974f11219deac26c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM72300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd790be8d556c4dbacce13d9d5f2c89248fd8b7f3510d711471157c3dd3183f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYUM72200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873f97e29cbc1e7273a8165e35c63af2e1d9314eba8129086b4c8e0faa2b176e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYUM72200150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3f06746193817675765428f750f7dc39b12dd2ae011d54fdaa5b31ecbf10d5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYUM72300209.