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 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 0xd36710892384e0f154c6d4454c1b261a9de8e46902c565f81cd563099324929d. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fc04952-66e5-41f6-b699-83b70da33b04.json and https://artists.proofprofile.net/proofs/artist/5fc04952-66e5-41f6-b699-83b70da33b04.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 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 0xfc3adaba75cfbd1cce9d47dab4fa2635cfbdd9ba55d8fc38b00a0ed7b3387bcd. 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/GBFNF0900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71c2049a80be711b04b0865cb993656665caf1fddcc99b1830989b386668498. 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/GBFNF0900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7dc3dce678b9bb47a8493ee8ea51deed218588d22717c4414169852a74a721. 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/GBFNF0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e3cd384acc04ed75dcebf509e8a7432d7ea13275b7e4cbd3523885966d1972. 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/GBFNF0900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dc04ea13c9732aa776f1948e4dce575935b9a189179e3175a13b3d50559967. 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/GBFNF0900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0da6c7bf11c09a690a4b92f601b45bffe3a50af7f42aa94458464c63c364c5. 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/GBFNF0900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93694c755b9d9ef14381d722edcdf9c9c03366d0c570d0dac10bd62bf9777508. 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/GBFNF0900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0060d5718bd78500adb67f516a3ac3ccad2e4afe6694977c2f53f828c8c00dc9. 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/GBFNF0900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6b63b9ff370e6b8029cf98a71db9d2b03fcd11f83b5a5ef9a8abc618050360. 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/GBFNF0900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa70489de8b73fa5683e27b9c8e2a60f58032ec05e87d0e7a807dd03f16cb131. 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/GBFNF0900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87ef87f103965bad22cbd9a1fee5a6cce99679b33986c44175d7d9998303a26. 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/GBFNF0900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6736a2b213a6161c6979dda10a31629140cdf311280250857d94fd8d67e12291. 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/GBFNF0900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa70489de8b73fa5683e27b9c8e2a60f58032ec05e87d0e7a807dd03f16cb131. 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/GBFNF0900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340f55436df5915237d250b65ab00dbacbe88b383bca7c104c7bdd0997c7f7b7. 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/GBMKA0600092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d61ffdee22bfbe42e069e56d22baea4f352c56ce1e0316c63e2d6b90cb3c6f. 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/GBMKA0600093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed2411163968228e3730cc611f6601c341a1ae5595308d61c617747c70fa618. 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/GBMKA0600096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdc1868bcea5b39bc92cd5f1ccaff88bfd2c591832670c82a2d092674903711. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBMKA0600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1223533fb784a0bf78cc607829894954cafa4c8ae3cc0b7ba2b0fe144259d871. 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/GBMKA0600103.
Balls To The Wall (Stereo:Typical Pt. 2) [Album Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12758a78a47b13be1179f9a9db431244eececead22367f2709c616753b0f02b. 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/GBMKA0600108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a6bed5ffa2053e32a7d689c93663722593f30929ff709171284134acadc2c8. 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/GBMKA0600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b43166e6d69ec24c721f6a7dcf3b6723dccc5e5a6a3840062685447cf1efbdd. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBMKA0600088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5cf7ab51ed71ce5b3d4676b45b77b737a6bd89067b109de92d6eb512cab9f5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLV61406806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aebe12edf7dfce3ea4989713b95018d322acb5634932b7a550bdad7d15611f7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBLV61406807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54eaaa61c4b0b95527836cc24705fc80648a1e7d0cf3c981c832038f7a54b239. 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/GBLV61406808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3e173d2a02738ce9b3b3d21b3b4aa8d7e58b03ff24104b37aa68e655ef713a. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/GBLV61406810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20259173f2860d3b55c118aa470fc5fbc8b8c496457efc43daaec0fc42520686. 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/GBLV61406812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246711b1970e04ce45fa201ad60c84f834151c4516c0823b52fccf8f7623c54c. 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/GBLV61406813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab6904a5d342dc7f8004fc122e0bf4f488aa058a09d9ee2db32cc2c016416aa. 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/GBLV61406815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50f7a12e9fcea7276b866b9f432298ca51ab00d60341d4e7d4cb3349bbcc1ce. 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/GBLV61406816.
Breakbeat Bass, Vol. 5 (Mixed & Compiled by Eat Rave)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03a9cc3ea49bfb940d68c6acea9f0cdfb7ee943a970b0846de9e3dfade2bad9. 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/GBCYY0500149.
Time Up - Drumsound & Simon Bassline Smith Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd16ac71aa144a8c6167ce0062706f5c968b47f6970849745810c0d9e6bab1ae. 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/GBCYY0500167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1399a51422f5078362e01e1273c1ffcff484b04b60a8882ccada4b6f326bf408. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBLV61604199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e949f2f928d5a53afa758f8ff13c35abf307e7b39757bb353519e05fb5d380. 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/GBKQU1791744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2707a084180f29de3b1166f1b887fe4f942596fd167ccffb8089cc9a6a8df2. 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/GBKQU1791748.