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 0x9617937db458d3f448b58276fd7569be2e88b55660f67bcec8f85eee31745713. 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/5ccf0c61-7c74-4c21-ba9a-196edd66401f.json and https://artists.proofprofile.net/proofs/artist/5ccf0c61-7c74-4c21-ba9a-196edd66401f.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 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 0xed8110f071a494d150e113c001f4cf5de37c8b4b8893dee69d057abc1ca481fc. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/TCADC1707409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a4036d5736df94972d20e20cab9b418712aa91e10568022973aed5a24c858d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCADM1806722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea57601fcab8520154d4a283bfc57cc626ec37e4ead2b70c4093b93f062577a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADM1806725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8542bd6937301c8043110a05b0f59eee074684d34eac83142aab2821b28ae4. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/CAN111900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d8d6edde184e80379fd7cbfea26e63e4b87573047da4115b1bc7252d1c386c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/CAN112000235.
I'm Not an Island When I'm Alone (Acoustic)
I’m Not an Island When I’m Alone (Acoustic)
I’m Not an Island When I’m Alone - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709347c5232163c6000247a591d05d39ee00c887e93f6050fed75e10e50ae7ba. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAN112000622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bab018ad69f41f6470e60a177e1fa18cb0fb0366d22ca77bb4aa199d80794af. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/CAN112100302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff0325d566b097b30a2bb445ac8b0489d2a9f9da7cade30b7192651568521f0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CAN112100989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740c60d474ff32c7ec20e64c57ae7cf7ee24480c422e1c11ed4b99cfca933066. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHNA2458521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55dc008b3eb4099eba047573d70cd5b808c83b7005043da7cb0d27c224d5fb4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:07:47Z), 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/QZWFK2408202.
it's been seven months - red herring - piano version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880d9edcbb0b51bb2fec2151f400ac9990adc97c07cfc8789b096f23570f7432. 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/QZMEQ2565506.
improvising - it's all a mess - piano version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e61300a295f9fd07d2dfa7cc22e5c11ed3043f428cd5c3096c82acdff909c2c. 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/QZMEQ2565508.
Autumn Chill, Moody Indie Folk Songs Vol. 2 (Indie Folk Central)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bddb492bb5c8c9a1f1347a60af05b8d86faee06418e7ed9110580da03f9ed0. 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/QZK6M2489238.
Indie / Pop / Folk Compilation - April 2025 (alexrainbirdMusic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead618035d8797e3ae8bbc00a6f4f8348e4e1660aea814b2c398717aa65416d5. 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/QZMZ92502263.
Best Indie Folk of 2024, Vol. 1 (Indie Folk Central)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe74b890b2295f8d91754e10d7b9020d0618687d063be211fcbbf043c9891a3d. 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/QZTB62440952.