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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9673ff95187a0eea26495d105576376821b7f17fbb3c3ba968f2ee0b35ac675. 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/63ce731d-3832-47c7-8ab1-b2d8a79a0e80.json and https://artists.proofprofile.net/proofs/artist/63ce731d-3832-47c7-8ab1-b2d8a79a0e80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wild Life (Original Motion Picture Soundtrack)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeefc04567331b5305e38050c6b4e9bc6b301fb5c51c466a82cfcd4f8cf34260. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USHR12345898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8e81da98f1fa2a5183549ef040b40dd8c17478b5a29c21188480b50b22fb78. 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/USHR12345899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004f6ae3ccb0e525e6d94be760c9f04b57680a4d7e87189840b4eea6c625ebdf. 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/USHR12345900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c93582fd0d9833080d8fc41d5a82d456de30f30203e3753c59899757af7fd41. 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/USHR12345901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca4e30697efdbaa75e4943b5a880aa46d0376341df887bfea541fc3bb5dfc4d. 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/USHR12345902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d8788cdbb14840c68625237a0e611e793fb38571697013add42b08c049a6d1. 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/USHR12345903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22205e415d2c9c664b071fc53adda118c68c2669422f49c32cfb74c17dc505f. 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/USHR12345904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ec2848d6dbc9ebd4ac550ea74cdace9a922da6b9b6b5d6473bb1b1822fb839. 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/USHR12345905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1a91cbce365e093cd110455a93a46c26833f5eaf1c4ba4f6efd5d61787399. 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/USHR12345906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c6b61f56f393f7633232160a9bd1cd8b40efdddecad05bcd1863f83b6faa63. 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/USHR12345907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d4c4f8d67bf6cb5d5e3daef452f6da03f833c547b9f6d982f161418262a444. 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/USHR12345908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca33a6e65f060fee4bff7e5082ecb709d5c867bb898473c3c6dc877a1f6a7e7. 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/USHR12345909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf970dc6c3b3ec85cf40c2383c59a7ab1d679d29d2e21cb3492e05ad8eba6e79d. 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/USHR12345910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250e0131caa3fda40d0f2ac39ef1d57521121f86ce475e42742bdc0d0dfb16f3. 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/USHR12345911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e37c3e464123c1d8747fe41ddeab6ce9e10748fd93e03475610f7cda953671. 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/USHR12345912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7072ab423ec64b18c885ae374f2a4da0e7054693fde920eeaa77665700feaa67. 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/USHR12345913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4849d098e7d03e9d96e8b1a159ba41ffc1bc8b3ede6cd2326c2b84c9bb29e1bb. 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/USHR12345914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c562902af3e9cd224b8fa88f04b13a5e7c6918d5973d69f0dd20e1b9cad71b. 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/USHR12345915.