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 0xce90d4793b3fda57d14f49e1bb694d5bdf43ef26a9b6611d129147b870ed3ebf. 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/0c7c2684-9e83-4619-818a-17110394e195.json and https://artists.proofprofile.net/proofs/artist/0c7c2684-9e83-4619-818a-17110394e195.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heap See (Blues Reference) [Recorded in Montreux 1978 & Paris 1983]
I'm a Jockey (feat. Billy Branch & Lucky Peterson)
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 0x0473e7ee07245950344c5d1002bf8594dea5f59a173e9854247baedaf34cbf6f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR6V80210279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f95b9896019f09ff4c849faf5ee9b6106d19088dece3a0a655469b41c72b20. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FR6V80210284.
I Didn't Give a Damn If Whites Bought It! - The Ralph Bass Sessions Vol. 2
I Didn't Give a Damn If Whites Bought It, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1d2bb57ad2d1a55ae6837f3baf1b22a71c2449efc70abcea196baf5520d1a5. 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/USJAV2110006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6ae427759d46cd2a87ba2d9ba009450d4269518958b4fec58e3fe892f5480e. 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/QM9AA1609430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c1fc70db9aad1abe07484aeb66a202e3b1d3a3fbc834b832015a3afb3a2fd7. 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/QM9AA1609431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ee511a8a786558778fccb1b1c46f7e52ecf94e460d20784eda92b9b33494da. 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/QM9AA1609432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef0b2805f9c1e333260637461f99b7e0c8e1ed8b4190f9c9c9e3ef20610aca9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:27:20Z), 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/US78S0531405.
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 0x714d56992930e657e8947ad8460a39e250748351d77be4b3e88a1815bd3c5cc7. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USARL7870104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb567dc6c7196b917cd5ed4c114a60502546378b352b46aeecd4c5a8eec1dcb8f. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USJAV2110005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e5dafa495407666f452e3c6d4385500d62c2cf7fcb10f967666524ed19417c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/US78S0531407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2e298d3c93b6e73a5d1c055dc9e3fa9190573761f5ea2951e2ab0e1d36f368. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US78S0531410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8248413c0baa88e414b88bf06f6e3f44b63ece5126a0cf8230a0c8d8d23c4069. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM9AA1609429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf61f681de254953ed76bf06efa11cfe2d11509bef87f895bf3de36c894a667. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QM9AA1609433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516453a9ae3f07e40e9bb1464187b5390581b64b0bb459b05f96cec5afd08d92. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GB8XC1089553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6f40b1a3f0e2d82c72aaeef0f2d774d8a4e9acc4937335b80da56a873f4688. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEQ100734014.