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 0x9ad858d34f4e375ab8754eb396a01f40a6f801a888bdb5f3b990b263e8da622a. 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/e0f66932-31a2-4e66-8527-d8b503b5021b.json and https://artists.proofprofile.net/proofs/artist/e0f66932-31a2-4e66-8527-d8b503b5021b.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 0x97c0c42a9c8cdd7d2cc2eae1625b9f4edeaa7fcf66f427544992f758c1861847. 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/FR6V81492640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef9bd1ee46ecb135e059a2d3fb8169242eff0465cae40494f8812f84263e4e8. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR6V81491526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a58d2b4b0345258a8f196f34a17e1b9beaace52342cef2a5f716ad70346a07a. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/FR6V81482899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc6f791517dca36e84b08ea0f5d92c8649aa913d70de6cea56e9b18056f95e6. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/FR6V81481225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2dc6229df2c0c3c1ddd8e313cad50aeb249c3d3f945313a0e106dc207184471. 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/FR6V81481230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f4e9754874e7583fafd26a7cee594110ace41be7080034727d10d588f39a93. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:33:22Z), 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/FR6V81492604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9176b9f6309149fd6ec2c6318e0ceacc5791c966a93d1ad1908d1f4194c484. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR6V81492606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd424e6b927de7ed3623eec5c9b537cbc7e4889e52434a7d55a95ec4530e03e71. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/FR6V81492607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d37ec8c088edcad28ea4d0056b8b4a238dcadc0370c888042da59b4098428e5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FR6V81492613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece3bbca67f9a13de90c02a733a44e50f19a094faa24e67ba01c18bb21ace304. 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/FR6V81492615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a746215114a9064d78b0d33dce8b5a5089433d51e9b22a1d37f8d58add3a639. 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/FR6V81481200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8258426ce54d60e5e5f2a6e9faa6060df5bf13399498b81f6782f55b13bda11b. 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/FR6V81481206.
А, я бухой! (Хиты всех времен и народов)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd039b9d4b2e4032c02390383b5b5f9d487052dba58866dba95263ada245cdd66. 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/FR6V81497757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60272d090aab1eb7197efc1104c24017b67d1405dae814c9cc37dfba21029a33. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/FR6V81497761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fed32aeb7a5a607dd6d59a93be8f6c1b52fe84ac1083ecbafc52f280409ed51. 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/FR6V81481320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee8e649eb9c0ad7e877262f2d66c4163d9ed130a31501010c03b6fe5671f537. 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/FR10S1609846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8be6d1b59a12250270b1d6ff9a2e76ba2a110a479806614486fac1dc5ff1e5. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:35:22Z), 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/FR10S1609854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29af826f15b58eb49e5d28f6a3f0febd328e26747d3290e11dffd6e5648941c. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:21:00Z), 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/FR6V81483588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02df5dee20302a8a5dc0aa8868a5fd217be7b9e57bf224385bb06ba450876fe6. 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/FR6V81481203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31040e576f29c886d14e713f0c54c88d3c79fbf632c166e7cf78e78b9e85349b. 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/FR6V81483590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6776bee444604168154c2cf430d9887dc12af5933114960a4baa6fc8b9b7fc00. 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/FR6V81481202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6bf9c3f5cf97302d49701dee677d86d3103922aa2b4bfe01032b03a5a30472. 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/RUB731433871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f13fd276bcd7b4118cd0423b2c51900e854ac0ec2ae1976a933c2ded3db3500. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/RUB731433879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01991dfcfa1a5cc1b4f8d4ef163ca5dfde542c13a718748a3a24c3464d7e984e. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/RUB731433897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17af201594508e96e0d89403e01a8b541ac4211b84e73b1977bc11db3e017d9. 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/RUB731410779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a7e2ff1d2cafd82aaad1ea89a0269694787a4b3de1069d8077f860d50167b6. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/RUB731410764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b16acc19f7581f8b85e0d3ede7088f5413855c8129ac85c6413d39d41792ce. 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/RUB731562272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8948d695314a3cd776aad5d2804b898ac190fb8f5ca24b711acf84b79add12a. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:54:03Z), 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/RUB731433569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e65ba99431c67446ec53b2b03e3a206e3e0454088f56a2dbebc0f258d603c1. 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/RUB731513758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6dfbc79745fcaae4069da50b885ba98e4f379b526e27e6badef459784226307. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:20:55Z), 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/RUB731535201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977cab63246fe6fe56726089a6c8417ec4475ea44fdb6869918e59050489793c. 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/RUB731571267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07378b1e2e81466aaf5fd5afaeebc6d47759307d31f599eee768f95319651ff7. 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/RUB731570758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44a0720780505aa3ae8dff3f75308833ddfd210fc399f1d0e6f3d5ebd509b58. Chain 2 (Bitcoin): anchored in block 957587 (2026-07-11T16:48:26Z), 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/RUB731586851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ddaa031ee0059e1be63065b959e8314861101e31157a1ac34590444d2e1159. 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/RUB732006272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371be69ef5d87c3c7457759cb90765315894ca909b43b3c06396e3025beb7792. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T00:42:31Z), 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/RUB731586855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a22b009d7b576d7e530f441c8464cbddb3fd640812d42ec8b854d63e8ef95c1. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/RUB732023233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84b1cc317fff20f66c3c770ee132cc6d9bf5e21d152a1dbfd03aac0e0dabba5. 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/RUB732052023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896f032f090f5d1f600e3d4b15fdd1eee16c1300002063a69c68f8ceaa74901e. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/RUB732082056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22660adba1bf0538610ca545e20144108ff6fa60a7385155705cd52265b6120. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/RUB732501302.