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 0x0d4466b79f154a17f7643c86a74932fc6015da6d52eb1a8d3f722287392413ca. 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/d638b328-5c65-4705-a5b6-c216f039421c.json and https://artists.proofprofile.net/proofs/artist/d638b328-5c65-4705-a5b6-c216f039421c.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 0x5837b376948484dcca209a1142ccc3fb0fe84ff8d31d986d8152dbfeec82be1f. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/USDY41753557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda8136f091b381cfd9dc2b83d96982641998e1bcedcd99b1f4c17559be2a3e5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMEZE1978452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59c305e60f90f0a3e476d23976245fa59ec9a4776f82e4d72ae54e32ad65cca. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QMEZE1978453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5559af6e0904821599bc61e7574d0da0f8cf4f2740188650518a79e6fd6fe116. 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/QMEZE1978454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44fe39750956f65b2ee493b9bf26960f8aa575c59e5eef33f7e77700d87b66e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QMEZE1978456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfefdb335e310e0df98b63d261c5b0a450b5cb417438cdd7b6c39c391b43627. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMEZE1978457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197614958b7e972d1038343ee8e45dd30722708432a9275683699f1a8f0d2796. 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/QMEZE1978459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4343982a2586773c17acda7fe244f343b1476149c960ae015a7ac407eb8562e1. 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/QMEZE1978460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2040edaf781503ba621c6c3a7b32a724aa7808b7766424f26562eb12b784de2. 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/QMEZE1978461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc11da38752d1d458d920b8ede689818c7e6e362074123a70af0cb30977e4786. 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/QMEZE1978463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf603bbd203ad28e86184842fa125336e28632d7c6a321bf8910af89449bd5d. 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/QMEZE1978465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cba68e6c3e69446d033341da32c40366492f72cdc4f4007644143481531a38c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QMEZE1978467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536ffb9ee50665d33f47e8c7748762fbe38dbef36f928796b2c0c90bcc41edf8. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZZ7T2580600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17263beec477ab63ac6de8dd88066c8b0e88fedcbb46c71d8055fe3dd85fbb77. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZZ7T2580604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522afdb2dbf93a1bae56504197235bb850063850e6791efb07ec98cb9bc06bbd. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZZ7T2580605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1a4351a82c3fc8de6d13d1a2c46e83f09f3fa5b7d1c99fe145cf7672a59976. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZZ7T2580606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a92262f1bf1d377d301d551bb935794bdce00872d74a796cdb44e075f2ba8de. 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/QZZ7T2580608.
ChillSpot Singles, Vol. 3 (Panomama Munhu Riddim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2935df4afd0ad527da0df90a74f52640c0ff13a89c2d3591feff900fad15d74. 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/UK43Q1806519.