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 0x8588d67d8a60ea913ba44142b3effa20f788067996c155f106559feef5a18738. 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/ARG601013018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d6bd9997a89bf96475a2db47f02f1ff608b36231a790f4c0233139c9e6e6fe. 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/ARG601013019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3e6d0c5f817b756764a7127fcfb30ea11b056660d55e892a4a854c4c0069ed. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ARG601013020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0893b9b0717be5c1565599539dead7e8f23589d8ffde16afe34340ad380a35c2. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ARG601013021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d5f9c01256eb32c3b5faac8258fcfb9ac9d7b17906500879cc7e20801ce90d. 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/ARG601013022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32fb174a3d8030cd49bf8aad5ea621d9fc72bc4fce8173313fd379c391c683b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ARG601013023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e12d06bd357129b955bc48ed15d6c269a32d2c5a6c3027c5dfd0462185e9570. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ARG601013024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4894256082412e3f94ebe633fdb1bfc9237efdc63050e356211b8eec548ba7f6. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ARG601013025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07939ec04bf92d6c67a248e367f00f0fa11ed2041a40d3b2ffc75aff33f103fa. 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/ARG601013026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b83d87d2e59c487609c369a890043785163feb1d7385da9dce714dc2d325cd5. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ARG601013027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdc6031559aea914a1a9566b6bde34f1c7af8a0430e9118dabc181cfb05fdfb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ARG601013028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1432ee87950adfe8f542ffa460babf758b33694f683f9f9ff186d324aab83d5e. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ARG601013029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe797972e494b6bbf12435c70e1a1bc1142915448babfe826e6a4ba762c6e58bd. 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/ARG601013030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3aa5fcb763aef0f314594ff2ad911394612c57e1870b690c291ce39e3431c94. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ARG601013031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1804c38fc0d9d2d278f9f2f938829bcb5d0c1970ee59e47b2053f2b1f986c47e. 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/ARG601013032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3beb88f0e289466d8dca0e829576a2853114a812542c5e721dd7ea4b069835. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ARG601013033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a6edf8f15bb85020582c9a6ecfd565002335713b7d025a100054f45707d0eb. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/ARG601013034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e2cc799e5745f8b3734b7f6e2d3020e761dec57ac17050bca5d1a82316f052. 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/ARG601013035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4623ac2056a90721222ebc8bff5774d87d3a79d19efa51b147ed405d8bc09de. 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/ARG601013036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26308c9451ad725c7fd9318594d14a167606d8241c2bc4bdbec8a219a1d3d13b. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/ARG601013037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165505502ea2de86168c89419fff17d6afa8b74eb3ba8749e281acb5bf7b5db3. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/ARG601013038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c1d8c876b6dec1bc1f94a8743266249373b9e56b37ef392aa92338e5176e16. 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/ARG601013039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d7f4b2ab01a0e16f27b542beb3fb5910d1145476ee512fd0aef64ed8e734b7. 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/ARG601013040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b93ba3909f26d37dad62715316f2c4057e0ab7286c99b3a3bdeea17f922ff9. 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/ARG601013043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5188dead39d7df5704f84dabb39d054649a3b1cebfb87486528074c820bc7c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ARG601013045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdf927ab6a7bdbb192b1f32e6e611b209451f5ae2dd3ab9188376c3a4b6d7cd. 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/ARG601013046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34b86f0acb95a3c2aa0b27a8c8a950564679fb6cd4532eb9563b2b6f7e2c27c. 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/ARG601013047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725c07e9cd74fafd5ec2f263001763f36f0dc0fd950548270c14325526274b46. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ES71G1608504.