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 0xd7d55c2a995d7ddcb8ba565504f3119fa65bf46236abb5ecf34d57dc1e902862. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2cec9c72-7e08-4478-b14a-4798dd5c0563.json and https://artists.proofprofile.net/proofs/artist/2cec9c72-7e08-4478-b14a-4798dd5c0563.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 0x5a42a1d5d9a6936d943327a382bdfa51d4cfb0b983c404e170d6e8716caf4f14. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM6P41428820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf536f6b0dcecb2b7716a1c7cadd4739d657590fe024008b1ebc3a1ab95da3a61. 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/QM6P41428825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1336c4418e84b24c50b932e8f21ba4e4a944de4857e4eb36f0029b588a1e9ab5. 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/QM6P41428826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151828b265caa6e82bded1468992ee648c9d7950497932ff0270d4c7026cec01. 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/QMBZ91612435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c533bb63063a347536e135b924156a39a9455bebf9c6b43ad92df42fe3f2ac. 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/QMBZ91612436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff14fc5bbf88156bcc59903219bd1184abd8a4e6c4cbab0a1a53ae5a859866b3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMBZ91612437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0548ad253a168f2161a79ac484be455662f5fe1080c288ec6adb8778fc47909. 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/QMBZ91612438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073a03a4bda02d50e05a4bf91ca9e2219cd01eedbd0208e96f091b725f3ee9a8. 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/QMBZ91612439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe401707779a8e98cde389c3f2856435b6505d7374e871ed8389975f41c112e. 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/QMBZ91612440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf710e123480dc12471eaa137bb8202ad14bab4e8ab53d536564fc0a42f5018f. 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/QMBZ91612441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923b4cdb93df3007ce920edb93d38a1c0f83b37e1860fbe4524481b411bdf7ec. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMBZ91612442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaeba12bc5a46b6ba28480e79ce74a0e0281e6471275f246967c625781b5b6f5. 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/QMBZ91612443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805b93f529d86c21a6b48d42918f5ddf030d32d3ba63e2935d28eb8720ed4426. 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/QMBZ91612444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2800d624d86b9f49abf187c016ec1151740d75251a6edececeaf41cfe76cfdb. 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/QMBZ91612445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bb02c6ee3b6a93b9102d13352d44cef34f635d594e047cff5a9ccbdf26780e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G1830630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196abf81fad07b807c5d8818d508860db4363f38b969baa2f275ade7aca081ba. 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/QM4TW1974794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ef4437dc4fac77f611ddfb4a52388e8ed64d861ca7a9d435057d8980461405. 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/QM4TW1974795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe136eba825a3d29eaa30e11246ba3637fb198f21f1e56d666413a6c2237b04a4. 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/QM4TW1974796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94efbc69a937f9412c8ee2933660bcb17f370c3cae0d93e4b6bf32baa1ff6f78. 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/QM4TW1974797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542935e413d41028955ff09c1474793e2ba054f7fe6e9613c08d2d595b442e29. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TW1974798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0466a871e50ec7056f1201df9776d70b437bfa1b2a029edd96446eee19bd1dd0. 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/QM4TW1974799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0de345b65a9025a43fb409cae881f07fc30c9cd31926eeaecfe3d3a074e49d. 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/QM4TW1974800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec8840ddf3fd413d73a6283df77fba8144a2c0a576f660edf31629d84aa1b02. 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/QM4TW1974801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd3a7231d67856e2887000de0f421f9d036d1ff695e82a8c01651088e4f4157. 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/QM4TW1974802.
R.T.N.P. (Roma Traditoribus Non Praemiat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52894426539bf1814d126e860505a13047a18fb1b5083d00ca0ebbea1f97d91d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TW1974803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ccd5f34945a6f8831b9ad5baadccf0c118d2e74b11c2072931cbae7ebddde3. 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/QM4TW1974804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6e4b468f28a2b5407ee12b8bdb196c1958c696523cab253250c32ed197d287. 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/QM4TW1974805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df25f896672d2a01c27fbdfeae1f09eefbe7e88e7fd332c40aad45f938264d3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TW1974806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb117a7921cf646cf7eb150af9f3d99a381e23b83053a084cfb93155689e19ba4. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QM6MZ2114456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbafa09c5e491915b824fbdbfbb14dd7ca90fcd00c6a5ca13fbe3e8eadea14c8. 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/QM6MZ2114459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273c12d96aa24ae98115d2734db74e196aa0d52ad5cb2e6a2cac1585ed7b8ecb. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QM6MZ2114462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416ca2b8b47ef3cd8a9033672328e23fa57d24cab786a013759ca0fa4217a284. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM6MZ2114463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dccbe0d16347aa9fb18fa28e53fcbb4ec1b894a3c02ad67f12b433765dcbeb6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:33:08Z), 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/SE6SA2440130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2525ecd5795fcb8068cd818922690e253820cb59015f3782ff0938d9125c606. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/SE6XW2405903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685060c12c717b9e39a8449e84e1e620cdc5234f23d8f3bdb881204a346e1b3e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/SE5BU2544455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2525ecd5795fcb8068cd818922690e253820cb59015f3782ff0938d9125c606. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/SE6XW2405903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dccbe0d16347aa9fb18fa28e53fcbb4ec1b894a3c02ad67f12b433765dcbeb6. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/SE6SA2440130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40df3b6e7f09d5b1d436ec42feabc9677579f000a3a443a0d59a4f9787e327df. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/SE5BU2589306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c97d2fa49a90f77bf68e79605340baadd08f9f33225047295cdcb0005383b4. 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/TCAFX2101317.
¡¡Stay Oz!! Hasta Que el Cuerpo Aguante: Tributo a Mago de Oz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bb02c6ee3b6a93b9102d13352d44cef34f635d594e047cff5a9ccbdf26780e. 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/ES71G1830630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf00aae4398e1c0eb8643a3ed05fe41ab60278f91e50c3c4fc5c5f27dd802163. 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/QZX6V2301167.