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 0x7dd6bd22c1c9cea26e786033947cc8951718cd65208a7192786be6182b706541. 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/a3caec54-3fcf-4f35-aa57-4ec00d94b2a5.json and https://artists.proofprofile.net/proofs/artist/a3caec54-3fcf-4f35-aa57-4ec00d94b2a5.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 0x625c8a7b56e970ce67aef2d2f9ee9e4d3949acb5ad1f33deacdc1faa8c6c6526. 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/QZDA82436211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8222c0d745fe6e778cf428be73a4d33d2e2e0d9f98bacca9eab5026857c19c97. 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/QZDA72320535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb116de80d31f5324fe1219a0c6fabaa8aecb9905b4293263e027290186d6b161. 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/QZES52181660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb079af4b57365a81e17ae9933dcc785d3dcaf18a9149adbab47f6655bb33ce5e. 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/QZES52181666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd228d6329731001b5124166b58ca70863a197b9244339a8ce8bf38f57ff7e60c. 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/QZES52181670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63df10a0c33d4053c8fc00b3a76d483c4f1db5e422dcf86161b682211a876fb. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZES52181658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4570af3d184828c65be4619482e6bbcc3c5b12d85faf292ddfcabb9c8916ba9b. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZES52181662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9c7a2fe8d681d41ddead9360969aaa3382593fc6a96db9e8e6dbc1bee51847. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QZHN72038640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab519125f41b3217afc47708fcd540f4623952af2ccf8b5821b6e854d8a23a0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZES52181668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465fb860724161c1cbdc40fd7106302a26bab35d5e12a07123421a3f199feb3e. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZES52181672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5df37587ffcc24c6f11c4d847e834b3dc8e4b760ea308f7bc6107fb464746c. 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/QZRP52426427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05fec22a63c34802403b6895265ba9f41220b46a0135f79f8a0bd054d078536. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6P2471887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5171a7a4175d7982d9c6aa6ec4c60c4d74ab84c7a185769a3f4b6e617c80126. 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/QZTBF2333982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe879dd7c8bfc9d9239072479cb408e3a73638e55ff6e4e6e83118bf87a8a034e. 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/QZMEM2387943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f61fb66cb2e05423c9e85928edfe46f6489c118f5d4d32e84f2d089afef5fd4. 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/QZK6K2349063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa9c425c2c3d766696ecc659f23240765c1e847b7f2a15e200c70a0d8196b4a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZES82384569.
I DONT EVEN WALK BY SIGHT (IDEWBS) CYPHER
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8034420c73f6e0decd4b1e08fc7da3509cf6e0f14aa5c13cfea5e5ab63a9f3f5. 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/QZTBE2336099.
I DONT EVEN WALK BY SIGHT (IDEWBS) PART 2 - Cypher Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e9e178d465192a916cd8a09563df954998899f2661ac07ed1e745a2cf1a3c0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWFR2376578.
I DONT EVEN WALK BY SIGHT (IDEWBS) PART 3 - Cypher Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d184c6429bff94d092937298a4ba475e74e007500ef12d15dade19e4ce88e2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWFR2376579.
I DONT EVEN WALK BY SIGHT (IDEWBS) PART 4 - Cypher Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c0132cb94102b0c0bb6cefae687425c87f7b7edb513679216b136ac50722157. 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/QZWFR2376580.
I DONT EVEN WALK BY SIGHT (IDEWBS) PART 5 - Cypher Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7291bddae119143ee312713311c4312e78dcd6f1f3073a59d235e898fae2aa. 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/QZWFR2376581.