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 0x3e315bd5afc9d0ace5cad335da6bac4e3f0fc03791ccd9d7dc70751d5a2b2650. 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/JPP321700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a0dbd0b20ceb14228d2efe04082db106fdf7a9fc018567d7e5bbd41f0fd25e. 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/JPP321700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b5c3e6352541ad823179f9e94968e2cbcdf59f1f31a17e05016013b364a46e. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/JPP321700193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47837828d1c0ab33b2f04f4a6aad50f8a1dc7c6410c25263280c2cef90320cb. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/JPP321700194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfd837b1d6652dda134c8c15ce32170a109cbf83ee66de240f5c96ab77383ea. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPP321700195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0367b9dc450c76cbe1ce76b6de24031dabe20bc4a7dfac6bd4d00408e29cf120. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/JPP321700196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7242e5f75464d88e8310d74c149cd52ff588625a4381624368c06a9d8d21e6e. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/JPP321700197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa045ef97d7e4bb1657ef36a91a43b9675315b60f565c080ae0eaf3c35eb412b9. 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/JPP321700198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc69972682015b359930579f53e7c2cd37f1071fd1678004c949375f6dbf3e82. 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/JPP321700199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf741d4c856c612ac152b20039b25277aa920d340c9218ab87959836b8b8ad01d. 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/JPP321700200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2d72823c7796f04f475364317ef9d7df3b3f804b0e0010e13c12167b164ede. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/JPP321700201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2107e8fe3398c3673d65f43ed683233088df92d86d08d765303300c6e29612c9. 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/JPP321700202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6a970536f89582dcfd1ab70f006ec4a3f277460dc6db7c2776d3ea33af1197. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPP321700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f44653e12501c1fd4dc472d8288428620770e86f5d20df84756862000641e7d. 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/JPP321700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb294d8ca0440f1b854723f0581e9c1f4c14faacde1b06bb3f29c82c838a3cc79. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPP321700205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f5c092e3880246d3727ba6565fd5a068f5d44ca3dba84a756046b87758558a. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/JPP321700206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e3e7202c4aee8ff7bd6260b33395711cf5f39d739e841964d8b0e63c78fc68. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USHM21187277.