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 0x37dacb3db093c9146e40954579cdd92dd5ce7a730bad5d297f475565f1e1ffa4. 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/79440939-ecc3-4e5a-956e-65d978327c2d.json and https://artists.proofprofile.net/proofs/artist/79440939-ecc3-4e5a-956e-65d978327c2d.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 0xd4571885150af3999b74ee3fde7e179dd38e5bc58810de3c58ddb36d11bb12c1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR10S1972937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4194380fe09cde69c253794a0a41e04c1e180d5d3910db8ac8600bc44d49063d. 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/FR10S1972938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7efb0eed1f07c575bdc017f77d0736d1cb099af1222e8f4119ea8095c8410bc3. 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/FR10S1972939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad8a12afc190adb60221deed3a4f992eba4cac2fb2cec27938c582fa90d7ae6. 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/FR10S1972940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a68d84c68731fec08b1e27bd35d090bffc97b8090abc48f29d2d7eee2cd0fc7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR10S1972941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7368f18b5c6439d9311e08e5891514f2ac8d0818491467c16c08a8ec7c9d45. 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/FR10S1972943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe016184f5f663dec1203ff7fefdbc826eef226773ba8a912edc2fa601686c106. 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/FR10S1972944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4c128558fca1a4fa3b525f3d1f5c8e8867c1e00e507988e689ffe262c0d31b. 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/FR10S1972945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28a726a16d6a5c6e2b88c07e97b750ec75ee7bfe08edd75457bc02d7901a295. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S1972946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92d58a7c84b02bcccfe0f89ef1a769f31d622098489cb07c38342005c1d3bb1. 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/FR10S1972947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fa0c3fe0123004dcfeba4b6f9d17c35abfa594597e9ac853206d328a5e4234. 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/FR10S1972948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f7edb5ee8d27fa351404310f720848056d590e906ee1905484711eb9a72475. 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/FR10S1972949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2d7e702c8e58c5d85ff3f6d503f0fe34bf602185862091cc0ee5cb94198159. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/FR10S1972950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8221f9c334fd399187ebca6fb05806fd45fffad3e6dd9d12a06f081cec28b94. 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/FR10S1972951.
Life Is Deeper Then What You Think Brother
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ea411c53ead08da0fe68c2600fc39d8159b6fc90738ff15b552c1f0b29c66c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S1956317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df2de5af7b7959bcb581825dd9ae55dd7c25dccfd03a9804bf01013cfbcff99. 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/FR10S1956910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328837360a38a5cc84e33e76dc0a524bdb5e4d243f65fadc213afb1fc1a2fd62. 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/FR10S1956912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2df891e69d29b5cdc8a792acd11b9d91b4d76d856b17231b45911fdb51876b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:10:17Z), 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/FR10S1956917.
Sound of Our Life, Pt. 2: Ethno Dispensary
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1826905d47c17b661631bbffeb7fb0b8b7855d067d2670265d344fc379c312. 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/FR10S1951615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea370fd61327d8751ae724a055e19d0c05edaab758e48218aefda90b96f18e8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S1996064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77db472f0efc61b9a42115a31e76f966429d5bbf44743e6fae79273ae211633. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR10S1996067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65cc982811ea42f69b406bffd41ea73fb339caca08d0d72da49edd1bad320a2. 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/FR10S1996073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b47e5268595470a8acb49892d26c986a799bd13ed60ac7cc9490ac1462adf3. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:49:00Z), 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/FR10S1946442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8960d493254aa97e256e2ebb972a7c2f2f0f225139d4c852cf1ebff15b9bc583. 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/FR59R2204095.