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 0xa9394b4fae199f43c5d19c99582af4cc8f47aa7876809f8dbb2b2c54f26626ca. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32544e75-6a5d-4b64-8c8c-23d09089b7f7.json and https://artists.proofprofile.net/proofs/artist/32544e75-6a5d-4b64-8c8c-23d09089b7f7.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 0xcbd594599c5b64b26d8996505f798899b34af1beda8e1391603979d5e794ba52. 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/TCADJ1733749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5a57c11b273d9d73b00e9979766ae5991f1a0eabcf67c91794ece4ced3970c. 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/TCADJ1733750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a6539fd02c58dfc344ea212d04a14bd6e149522be1221e488f83486271b558. 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/TCADJ1733751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6c053acc9d041da8aeeb3cdb9a7b1777cb47d28e2e2b1a763448d42a32d3b2. 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/TCADJ1733753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912580b0d616b7e6f650862ef8f607478cd9d7ca2c10b7e92d9162f989976b14. 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/TCADJ1733754.
Streets That Blossom Empty Echoes and Serenades
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd349c7f6f9b79af46247f577a05b5b6e8fd5fd813fbdc5fe6b77ffd22c8e7aa3. 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/TCADJ1733755.
Endless Steps Through the Concrete Woods and into Your Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b2a63bedb39271bc33b459aa9131af7d7367bfd53d0b6b5d59db147916f532. 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/TCADJ1733756.
To Be Honest I Just Want to Eat Noodles with You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bf26b601cb6f088f64ab3c720fa36767d4605ff1ccb41320827a9740507df6. 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/TCADJ1733761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa0f300a5f3ec9003ee3c48f212bd9c4de4b4500d570cbe466f8d5f67c1f1e7. 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/TCADJ1733762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed65d970fd6e60fda330e79069704afb9abdda593f09d64712f3e4c1279f328. 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/TCADJ1733763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb4d90a43ae6e04d4ec614b1737074f8963f72c0286087f8f4b46367eca558b. 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/TCADJ1733766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912fca4286ebe7713fbfdc5d629e63e1a754d5474333f9b05a1656a2247f5c7c. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QM2PV1815224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f024b6c45bb41899ee2e119f44dec3694c5680f90a799f6db20608536946501. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/QM2PV1815225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780f2074705ffbff6e856fc942159a31c98da8a21efff334aec54ee7c74d75bb. 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/QZES91896311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6828305dff433fdfc9ed8a7dc16543572435ddd1b49f8591580bb64eb03507a3. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZFZ62092660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0eb5395edb2e9291c12a811c83dfc514a4a9d0ed07b5af78cf58efd038acb68. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZRP42549916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a52cdf9817564b16e9a686e9ed8b6b75ac3227daa144eadb259a97295aa6f95. 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/QZRP42549917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3a3f960a574c29abefcbaefe5f287b6540df48120880818235811d083461b2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZRP42549918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1515c7ad139aca2de11433719834a2a2a2b03a8433ee18f2875e09d9001b5a2. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZRP42549919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878ff4c972b39249eba386ece830ffbf1969c6922cabf2774e128c476955e5f6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:34:28Z), 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/QZRP42549920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7512e43fc43d748de98e552a5e89c5cae1318dda53752fa975f552f84170ae0. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZRP42549921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ca69a08d99d6270dd193df072e59678bbdd54a351e7afeb325b8ada89eb555. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:28:58Z), 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/QZRP42549922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41118dd0d620059183584738a4c4de55517f75f95660300b4195b75ab0a2402f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZRP42549924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05073d0c75cfdf4c241ef8fba585dcdec10a797a6d4b17599cc32439fe1a7862. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZRP42549926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083851ce911147292a3660f01e96cd47b58cd0837aa31247d9f88bdf913b4a63. 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/QZRP42549940.
I don't know why I feel ok right now, but it's nice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62202ceb6c864c68b4f50e1c2b61b43dff1112845c155a52d2a45abe248844d8. 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/GBKQU1823926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2aee7080e754ff3c915a2735f408a6721576ad2d93a74bab93b1130ed7301d2. 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/USCGH1869130.