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 0xf976495dde35d8cdc7320c50b8730bff4d3b2a175a0dbc007ac58aa0de4a8c1a. 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/61139aa8-6dba-4807-88dc-7f1683b436a6.json and https://artists.proofprofile.net/proofs/artist/61139aa8-6dba-4807-88dc-7f1683b436a6.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 0x4c5fc3e437044a3b108ea8d5b5a564dd860066e644085c4690ae7957da3c7a26. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/NL1LE2202754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232cb28ef2e4f628964026fa0900bd7f1cd48ce626d8f7d1e9ff2d70baf2241f. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:29:18Z), 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/NL1LE2202756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9dae96362de8ccbd174de01ee7e6f7100d025c861f2e34e25508a6df3e3bca. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NL1LE2202759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cd61e8b4d2cbb4a52439f391821add0e08af0e5a64d1187242a8ab048e7a30. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NL1LE2202661.
chillhop double beat tapes: J.Folk [Side A]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd6503f9fce2c64eaeeaebf4dd39e06ef2670ca72a6edd4e845720325eacd87. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NL1LE2302997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f3e97480857321b38247fbdd7680b43f0daa7c0a2a75022d92e99716f80389. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/NL1LE2302999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97922a724cad5838613d7089f2fc5606ffbef321eaa193f935d4644e74d35fd0. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/NL1LE2303000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4174a88f048ccc9b45bffe389b7015576aa5bc9baf2159f7fca583369020818. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NL1LE2303001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec99280bda4beddc498a2f0fb68f2a3af45130b3acf7f20a35b2298009fbb2bb. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/NL1LE2303002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02db876cc56c668a05bf254fc7e4a0ae00ac3141b7d8786f730877d6ee6e202. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/NL1LE2302876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51bf5de374fb9808e91e33ab8ac62a5a96471d365c6b6e7f34246b0df0516fa. 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/NL1LE2303445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cd61e8b4d2cbb4a52439f391821add0e08af0e5a64d1187242a8ab048e7a30. 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/NL1LE2202661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf3a524a13a7488f4b1011e4f505f3eef799d149662bcd3826aeeb9a6b8a0d0. 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/NL1LE2302971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd02db876cc56c668a05bf254fc7e4a0ae00ac3141b7d8786f730877d6ee6e202. 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/NL1LE2302876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6f522c3c56bda03108a6037a9071d12cd6f678b355d4e1b1c444f696325dae. 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/NL1LE2403540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f56f4ea9b0b41e1f17dfe4ff02e63da3810c7ce392918ecd6407f19a0784447. 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/NL1LE2403658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69ea6d50bfe00172c2386b94c3d50cc3a26c714da5b238fb193bd00f2a68bbe0. 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/NL1LE2403564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5cf1d9139ac30e315ddfff99f6474b66fa5c44340ee6215bb85bb17b865942d. 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/NL1LE2503714.