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 0x0b8b3e48b9ec0fb958a43403fe17cac3efc996bdc8b8c8465c169351ac45d692. 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/f6dde46d-8fa4-4d38-9ae4-d2c0ddfd3f2f.json and https://artists.proofprofile.net/proofs/artist/f6dde46d-8fa4-4d38-9ae4-d2c0ddfd3f2f.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 0x2b1ceddce7d854c974416e42c24305a27eddf034db129a78010d47cce7256b8a. 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/MYA119700074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee7fdf0129ddb4f6381467c7296b4e91c212a784e850ed536a1d435cd680c29. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/MYA119700077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fa69899194c70afcabc4434c3058df63dc2566e53c225015cffc62412ead62. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/MYA119700081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836b1878a71bf0d62013a9a9978b9e3530feba79c1da7df225cb578ab8042053. 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/MYA119500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d90b4838d975f878dc0473410cc992a373b64e7b73cc679d5655d92d3da14a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MYA119800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33658cb2dd3693831bb8bd584b6faf530c37026055880ef421d1b86b13ac29a1. 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/MYA119400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347fd966efcdcfd3e04504ba8834782e1a8d9a32bcb68c79633865423761679e. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/MYA119500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979dabccc51b4e890e20508f58563c20479b023ee4cf485076cecae652ceaf7a. 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/MYA119400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c8422fd4e9f0e31b5661fb613c576f21cfd54be806e804c03a5e0a3a2a97c5. 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/MYA119600160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979dabccc51b4e890e20508f58563c20479b023ee4cf485076cecae652ceaf7a. 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/MYA119400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793415f68f83e8c641c74b92b2870cad447c972b8250ed26176b4ca6c79900b9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/MYA119500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8881c27df9d1af7aa82a8699ba55d7db8d0ff8481924639dfa5209922d4453. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/MYA119500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b6f9a70a301a3dd4e76860364dde15ba2e484250f37ca999f71f6f4e243968. 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/MYA119500154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793415f68f83e8c641c74b92b2870cad447c972b8250ed26176b4ca6c79900b9. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/MYA119500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8881c27df9d1af7aa82a8699ba55d7db8d0ff8481924639dfa5209922d4453. 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/MYA119500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836b1878a71bf0d62013a9a9978b9e3530feba79c1da7df225cb578ab8042053. 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/MYA119500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793415f68f83e8c641c74b92b2870cad447c972b8250ed26176b4ca6c79900b9. 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/MYA119500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d965d800bd6a0e0ad667a74700197ae728cc8de7667a16dfdc221ed94549166. 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/MYA119800024.