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 0x7dac245e7a2f4b1fffd2cdb7656a3a5746b1549091297455e35504b3bbef9a06. 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/b1ceaeef-955a-487d-82c9-fe5ed10f99d7.json and https://artists.proofprofile.net/proofs/artist/b1ceaeef-955a-487d-82c9-fe5ed10f99d7.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 0xcfbb7c106ba17999df6c755942e6145b06c7a37d58864d509de06b1ff89a172f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IEARP2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205fa1b0c6be5fe57ddb70c07e37706254d66dbd98f48ee21e7288978910222a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/IEARP2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62eb5d0bbb6b0b2a9f2887a6038fb3d37b7914675067b67c13a6b70c7106df3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/IEARP2300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87242249a53b420acfe57b552850a738ec2d5451bede45d1cb0f19cb8f73287d. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:05:43Z), 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/IEARP2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae672e5d50c141e25cf953f582de8cb6ca2150276cde8b09001ce4a8747fbcd5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:19:18Z), 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/USHM80671895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bc9ad5c8902fa4c7fa1da8ac2f43b3b404ab6b6f1fefe602223a2644201b68. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM80671896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d634dc907649ec20e3b0f626456f78da8854ddfa3ed745186e2ab40366ae38. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USHM80671900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58b00b26142c686c715cd87bafd87ef9fc7a342239321d87acb2b384f39268a. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QMDA61468951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad6ca84d1cdc380c2123326f735db3727417ac3a23f8b56a02eaf7f547d9c67. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMDA61468966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc93fafab28711a5d912f78de9bec291d4b14ab30473d5bd337b53aeaab2e8d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:36:26Z), 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/QMDA61468952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a16f0820bd5fd8210202fdbb64b814d9f73b8d6b06b49d0652701d597579b8. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:56:17Z), 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/QMDA61468953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab260681b1f2018e6fb588b1b5cea6510c030e1b80daea4201c3b4912778e9e. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QMDA61468970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053ea8f84e66782ddb344cb16869a822369199046ece42fd2b3c2d3a06dfb97d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:13:54Z), 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/QMDA61468955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8880a0dd7059566cee6727e5d453085d880e7a77d1d27a2004cecd580dbca946. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QMDA61468956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc62117b99b2c5d85c63f889cdc8af27e33d32cfd3a855bee1bf18ebc4c6bcf. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMDA61468971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf791ff4f56c35b0171b4f74a50f32464129a0e3f99379c531541ece557873df3. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QMDA61468958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575c7ca1efb6856901411ba21f1508afbc0f2067c1c0e6622320cc8dc2255ca9. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/QMDA61468959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36d875e473969d1a759bf7973904218ad7c67a0d1bfcf2379837d3433a0697e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/IEJST1400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4e9d2d997534584dc9a23acbbe967b846470b47b17197b1a087a0a69809b20. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:46:59Z), 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/IEJST1400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9b5f90b9b189626c616cdee3476973cfaca19e580852e199f5f5afea9c9872. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/IEJST1400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9cf8b740855e39c784dd37944487ad7077f760583f38bfef3e8cb7b9769869. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QMDA61600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683cf46a3ad6f1fc57a7cce21f67d379fcb9cf0e008a58da9faa29c0e616ba85. 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/QMDA61600024.
Who Knows Where (The Ballad of Cpl. Patrick Gallagher)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe353a258eded82de7dab385b746d8b2640f3803391b382ffff1bc06aa4d04998. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:21:57Z), 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/IEJST1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450d9516bce0ba09837ecf4f6921c8eba22f666bfdfdac8ed31d23d2a7ba1174. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/IEJST1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1c37f320e9f0d3a734a21e883a616925c808aa9f0bc9fa59f75e68e35cc826. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IEJST1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2115303d79a7a41ecc59d875696fd78963888ebe38aee5770b6177ab99706a5e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:21:12Z), 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/IEARP2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39ee8463115e3aa3fa914466fddfd27b2747ad89b79025b33b8fcde42f21ea1. 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/IEARP2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2265b69596155348e6bd366719af3e5759c97bdc2df0b60c7ebfb9530f75fa. 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/IEABE9833704.
Madame Bonaparte/Devil's Dream/Mason's Apron
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58207ad76cf01954858146506b54aee71e7e0395fb781f0f143a8285b7a3a1c. 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/USBC19801025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150593c7721ddd3a25cf4cf51a14b0c86c0a13413ed9d9d8d265168474673d51. 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/USBC19801021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1225f09343941a920def4676c923add7942520aa0690a7894b35d351bd61026f. 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/USBC19801026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a675f67b036a4ef52fc2fb54aebf8693c6780b6fe762f921395d19c44f33c46. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USBC19801022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e43c401aa6ecd6edcc026938bb230b6616e0db04df56071bb24d9b01b112f4. 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/USBC19801024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960f19c9c06523ab14d7aa89f4c9a9e3f90c7586d51993b645d071c54d9e9362. 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/USBC19801027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed048a4ee93960b32069f8abcd8b48b0774bb0cbea3374c0378ac055a1becd60. 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/USBC19801030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7456b8e01770aa2d8d105ba414b5c9b1708ffa2fc8d7ece47139534bd2ab5fca. 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/USBC19801023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f989063d839eac79fa143e09a1b2c39cefc1e6e261ea77ca6d89ce043557c3. 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/USBC19801028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b1bfa1448b361bb851c74a518f6fdb6ec4b8c24e015ebb4fb34defca0845d1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USBC19801029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afda96db05c7a709e1b611165a07d4cb2ba3868abdadb73dab57367ccd04db7. 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/USBC19801031.
The Burren Backroom Series, Vol. 1 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94060b9e252e694452d62253d3e60bda522b3c7e9b1fab4a83c9aa4282ba3faa. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USX9P1445773.
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 0x3347d6075664bd7ff496022c861bcbb2e93f0f0c7eb56eeb690ffa92e7e0d144. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/IEABE9833710.