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 0x2e84ad4383902ec49e204836d04b3f63a31ed383cf4a85f864bc2d75edd43f8e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba57e046-ad8c-480a-bc0f-0e900e82a6af.json and https://artists.proofprofile.net/proofs/artist/ba57e046-ad8c-480a-bc0f-0e900e82a6af.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 0x3aa522271a7da955833f2b2e70fed03d154c5dcdb9d266963c71bc75065de2b4. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USMBR0906910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6981b9ab2722d1f3dc9534c97d5d0fe2a771ff2e54999ec7bbd3474fe7e92fd6. 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/USMBR0906911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0ec45f6bb12894a007ed5feae66991ba0a2b7c2c720236b55e4db6c4b63761. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:41:03Z), 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/USMBR0906912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3efb3807d79fecc411f5fa6ea8f06ae21f54e14521892d7567d5b47c12536fd. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:09:02Z), 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/USMBR1007784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e27cee96cc97548b4efa1f3424e6485b26b83a58990b549828efd50e4a93bdf. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USMBR0501802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33a18e752c34a130c98085c7f0f192506fadcd106024d016eed0aafd8ed3d94. 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/USMBR0501803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64883ed9f85db719decb7cfa23e9a1492cdc08317e5d92a0d5ea1916419d3834. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:46:32Z), 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/USMBR0501804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36baba7a52c52a56c6464e05da8894d52d1595f889a5648fdc37df95b9703a1. 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/USMBR0501805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f01d6cbe55b728011f23ce992a1ad890ff3d7184840f2774d476c2da11f9c8a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USMBR0501807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e84162eec6fe67db7f445d4036590171bea1823b8f782d52e7ea2b23b184729. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/USMBR0501808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d55262736b2249d79c783181c284585397e354f9f2b8128f7f2062336eca056. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USMBR0705446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7da08f02de3f4d075efc82665586bfc5a786413598ea23a83b9ed07b953a3b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USMBR0705448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710c92405982c714dfacd95a6c3d96abd11bc4ce6cb333aeefffa19cc662c823. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USMBR0705449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d106ed3bd8a74d8fd1b67cd6bd6de862ae141dfd5d0c1fc7f298bf03fceb75c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:30:14Z), 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/USMBR0705450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5555047f8467932c878de0e97d9d6ccd9b89bbda6a0b30bf67dd6c5a1f95fbcc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USMBR1007509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b50139435e5b14e056e47a557d76e354f398f549a6a97a3505d4cf3f3ec391c. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T03:45:47Z), 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/USMBR1007510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc039bf18eb5d9e98e0d4a84af7bbe5057e19b270a89ac1e86b06e7255d5b076. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/USMBR1108087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce0bc7db3dbc6cee6551106cb4535567ee7a897c9daa6b563e571d3cc614529. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:29:20Z), 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/USMBR1108088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e24bf8c6de5d2651fefb5b465124dc62271113a3a9768e25844ed7c3f68e5d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USMBR1108089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6325cf552ec6be881d5719f8f877f1010c304b6d32d9ae9dcb0fba029ee91bbc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USMBR1108090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb4c082030273ddaae7bf5aa34dafbf11aa6a9aa3a06428cf6b4905a4eda9f0. 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/USMBR1108091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45a4506469b77fb8d22173bbce23ae255b933046eb11c482eda748749a651f5. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USMBR1108093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f385cfb285b6f36bc6dac9c1269d3a9da44f2a408e8cb37720bf957f16927e. 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/USMBR1108094.
Redemption at the Puritan's Hand (Redux)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cd345453a1a9a18aa0aad15208a23fb501865e23e403e267ee27881e7253f7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:59:41Z), 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/USMBR1410836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a35d52312d95f37951221fa1b570cb0f03ffc9c2988bd9266bafa8d012811d. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USMBR1410837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb487e0c5bc3a2dd802b2d5e1df67f6a781bad94c7da3cc39e1caedaa019b123b. 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/USMBR1410838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fb523fdf01dc248ae8e17cd3931b45f2d39a47407204b7c268fb349a7db26a. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:50:19Z), 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/USMBR1410839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d9507bee77e125379beefc234fd25fca4825f08fcf4558dd913b0f74c4bf71. 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/USMBR1410840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358ab0c889f7f91916454e264a8831dd31174afa2745978283afbd37f0abd2ce. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USMBR1410841.
Gods to the Godless (Live at Bang Your Head Festival Germany 2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295d18f20fcf55002c97d09c3dbfe9e416b2f484df38f2b2b96ea2a66f4e9266. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USMBR1812861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4802c9e4e0edbaa47758aa6cebf21240bcd77839e846d3130c9c8b233f007bc. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USMBR1812863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83505fac0e12878ec9274c3d456722f1ce0932c8c28d35725a0f5b2a1537727e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:58:04Z), 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/USMBR1812864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21099b7382cc88aba503172a5fa18b1378cecde22079fd013d22106cfe0ef131. 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/USMBR1812865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15522e179711d643d08456df3a1a7cb76f8d4fa09b26a5420c2b9574708fdbd. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USMBR1812866.
Victory Has 1000 Fathers, Defeat Is an Orphan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f30ec90bad94a213f47d3cc59dc1db488889a7d145db99ad131f8a150f07e7. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:20:33Z), 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/USMBR2315825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f327174d1172e2bae8511b576c0c6f0fa143793743b21b815db2a415561dad. 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/USMBR2315830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67a968926876cd3cd37fedc405dffca7f65e599b41bed0cf07cd1da5984e2e4. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:01:52Z), 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/USMBR2315832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2d1cd30e3fafc79d5d1b023e0977f44e4553a373de4b96ab760bc8fa47ce4a. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:38:33Z), 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/USMBR2315828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751dada3e288c9baf8385befad9e936d7f6be6c204d92e6f80a29e1d575a4800. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:06:55Z), 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/USMBR2315829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9d04cfecf675ab2c590e60e1bc2291626ccb682b4f0f7b314a3d0c17046357. 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/USMBR2315827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85decd6652f5e03ac2dc9b267816cbaa0d6b922841e71ad20eb86bd3bf16329b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USMBR2315831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7eeed9a42030743d26945740dafb378e043b20990b274a8e80a7c479f40989e. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:32:16Z), 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/USMBR2315824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d7586e14d1c84cad846d3ee9b558b4ad57ee9420a88db559716776bb9083b3. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:37:16Z), 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/USMBR2315833.
Empire Falls (Live at Ragnarok Festival 2017)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a715fd8ed1a4ed289efd9e796f02e4f7e4df5b68c92a014074f747468eaa89. 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/DEZ902000132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0600ccfe2396c50ce9c2e1fab3bf116a31bacd1d53e58bf84b460360c7a3e1. 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/FR33T1485601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe894c25180a536486e53f4dc0cca61362ad707ebcea040eef0f2fc4614a691ff. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR33T1485617.
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