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 0x7e3c8c6287f99690af4b03f2fc8236e52000a96364d2951099f20aecd1bf87ea. 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/941de47b-ee4a-42d4-b82f-9fb3adb7a2ba.json and https://artists.proofprofile.net/proofs/artist/941de47b-ee4a-42d4-b82f-9fb3adb7a2ba.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 0x31edfedad85e16011dfae8f5f1a9313700a1665b4ca4a7acfa090a149f104f7a. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:51:36Z), 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/JPPS09603780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf936311803bfeeec8c4f296d63286cac9f8775fb55fae6703ca152ccb9798a73. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:40:10Z), 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/JPPS09605730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc52807b64d73acec6f9e957393b13114aa7467eb81c44affe1ea5a81ab1553. 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/JPPS09802820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd46dd11cbdae31c95cb2870a9b46906896cd2deda4a0a847768130c76b90850. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/JPPS09802900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dab835c2b4f449994855d8ef82f2fd3cfc2344be4d860bf29a13b174fa8ef6. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/JPPS09802910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f65f1dc7f92a9177e70db24a23e75a3e942e1aac45c22ef42d244e8a9ccf50e. 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/JPPS09903070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5074adc8262f363bd999e78be9ba9e9589f62329344d2c9aba13912dc48f46ab. 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/JPH009910001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57024b54a2a001ed1685566597a2de18cd9718c81c9a2030d8c4fee5a06adc95. 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/JOH000010019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61615f700d1337e17ca5295e25b77c7b5c9a600e8583458fc56935873f9aae17. 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/JPH000010012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53646af795cb35960c2dca685e10faa83678f6ce8af60b1db955bfd58e85efba. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPTO00201662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86cf46df3e63b98c26dc24f6a7fe7e4c646df911ac747188d8de2aec80279fd. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPTO00302040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40394996916aaea707ef103dfcc1d12d2264d55238cf9a4b1957c2eba3558944. 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/JPTO00300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5274cc070de3548d63b29e7f40da0b5f9ad2c3f05514d3196c48923ad33321. 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/JP92N2518436.
A world of a single tone spun unconsciously in my youth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef520712f514d4e2855d3852051a01feb92b086989c8a686c55c264af8bd63d. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:22:09Z), 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/JP92W2505066.
A little while ago, raindrops fell from the sky, its waved the sky in the water.