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 0x95232c494004eef36b36ca61654f7b0c475b8f924665c38e8a0e17fb51e31dad. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e5819be-41e6-4b5b-9b8d-4283dc3534f1.json and https://artists.proofprofile.net/proofs/artist/6e5819be-41e6-4b5b-9b8d-4283dc3534f1.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 0x7c22aec3959d6b12cbdc433abe258c5718b6d32e9f728bca23c8e72c9592c76a. 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/FRPDG2100310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07335d15d4540a264af8e9d842b2039d5b5a78e483811f57ec144fc4e89c2e1. 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/FRPDG2100320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4163c26d6b3e1f728a4183e89d391634ced55916717039b607b52cbdc6907073. 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/FRPDG2100330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbecbd666d5cdd0a3702998eeb9cc9b69956c4137add49a54da7a92c6232481. 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/FRPDG2100340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb512c0ddcfb69e516471d2490cb62b816db7c2e242bcce3b9b370229208677f7. 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/FRPDG1500120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b006f1a8b2fd178f961b4b2f7c19b198afb8110cae984ad3c1fb4d9bfcf17d. 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/FRPDG1500130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c4eda2eb6a0547b954b6e2d5556da8099da9e0ad10b42e5a3011057224cb1f. 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/FRPDG1500140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17aa19fd288899e26c4eeea6fb7b774591b07eb3b89cbdecc0929b10f6c047a3. 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/FRPDG1500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b49512a37d5128c896474f29811326c28b5ec3191f0b99c318dc4237529e1c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/FR3PA2200050.
Extreme Nails - Jon Charnis & Hands Free Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d542172926bcb8b217209605d71b38152f8e195dff9c7f9bea99c8437ca18d. 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/GBENT0140334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c6e59a588efe135b1a2697b8048d25707b8e365d262390b60afef624e053ee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBENT0140160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe794d5072bd6cad869813a63a92c510aa76bc07a879b3875b748694ece1278db. 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/GBENT0140167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ce0817911a34e4281cdae1e0753bc3a5a76182703a446dc9fe24cc41c381d9. 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/FR9W12221645.
It Was Fun for a While (Tim Paris Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff14a0e12f9d98c67e23095d5e998c83be70d67902513e4108270a1c4fc97e7c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CHC961900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ce0817911a34e4281cdae1e0753bc3a5a76182703a446dc9fe24cc41c381d9. 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/FR9W12221645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184199d6701d9fa12aa9217f4fa99130204277b299869c61eef7f15b786810bf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W11410066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80862759988bec067153c30f77c10e124622f3f5585f550a99ef70b6486f9d83. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR9W11410073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de2003428ec4247cb2cb4b0f42ddd79e3254feefa5c00e5d55b2063ce3befa6. 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/FR9W11410074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa927dad8fdde6a82bad38945ef90e37843d6b0c7cd0c17876c936dbce62beac. 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/FR9W11410078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12083d0cf6fb7c3a16fcceb4277636caa8234f213b10c1c892209f8fd622430e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEU672500595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0139391987ce6cacd793377082e61a2df32235d9985fd8f55bfaa07906020e85. 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/DEU672500596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6021269dca433e4778af79a4ac8c62da1a75a80064fec20eff771be88276373. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USLZJ2060116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa674cbc5c76d0ad6d7b593eefe7bf30deed70818919241e4f09f6b6ea4433519. 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/USLZJ2060117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa6f43c7ca8e7659f633e558460364b12db1cde012810455fb322b00b81f116. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USLZJ2060133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37161e7c47c1b99e78c97ac0d859bd502728dced0925f7ff2bec52df53d1ae1d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEGQ32200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce52285f0005da9ec205dc8a7183447091b838224235bf7f8db560306f8aa9c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR0ML2200420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fb6744ee292a60bc1ee75eaf075826f67fa01420fe890627fef7bd3fef2d4d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBENT0144128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a907349f828a284f8804cb48ee243fb113e2fb0b0b4ef9e85555e528aa669d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLZ9U2210004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74d0d4f4debd33059b55c19fffc6be2a24524a43b68a66d3ef0100eedf52074. 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/NLZ9U2210005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07424af1ca35907257c113b9afeb2e6405630a3be9815647200694871b896d19. 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/DEDW61200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x438b4a3d0d6302fd53ff5ccddaefa9992056411d37c2aa0d87b199ef046d8f63. 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/GBUVB1500001.