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 0x24cf88943241bc7989c74134b3ac82165f0fa1d63efc75db477b951c950b208c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57c730c2-8578-45c3-95fb-c2bc4974dcf9.json and https://artists.proofprofile.net/proofs/artist/57c730c2-8578-45c3-95fb-c2bc4974dcf9.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 0x28074faa269c26e3835604b9b6d59bc925f4130376402ae6a3fc3decd865d2eb. 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/ZASW11600001.
Agere Pachigaro (feat. Rofhiwa Manyanga) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cba7428d287225c5fcd64f2e6fcb5c049052094aa53a3e056c58be6f79f02cb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ZASW11600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784f347cbe61b6450082c3b7f8aa12d179b650a2c5f85baedd256ea541eb7dc6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ZASW11600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ce4461d23df1e69907168da72c13a0fafbfbd8009c450957266826d487821f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ZASW11600016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8d9db47f982b3f7960b4c68c51b8a2edbf2a415439396aac495e4e28a9ff8b. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:33:50Z), 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/ZASW11600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe515d9077c73c28f181feb1629d66f5d2712a5e87f8dae71ab288429219e11d6. 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/ZASW11600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6d4fe69885e06122417dc86de1bae5ed5f1fbd1080dd0a1c838ed034671ee4. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/ZASW12100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6668ba14c121725d2e00ab18d18c1b693f5292088ed2dcddde138f232376c29. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ZASW12100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f3aac051ad8a9ae29c4fe2365e82f099504cd06be26760596160d9dd16a021. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:57:42Z), 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/ZASW12100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d989880917718a04ac76a6e1449b0dd7f98005bdf0d04af382a21a770ff2d6. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ZASW12100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d8ac444c472592180bc11e3fa2983cc57f4648936e957c1c599dd30a740f3c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ZASW12100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289af9fd1e7881b2064800399f209c36d77d6be24357e1b1d329bf53a41a08ef. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/USDHM2310536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9740497a5c7fd84c4c8ccc20e731c707309d222671f09ae1231ce4a06d262dda. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USDHM2310544.
Sound of Gratitude (Live at Urban Brew Dome)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda207a33510563fb43d0aca157cb540498ef6f25e4dc37367fec6c04c4faa4e5. 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/USDHM2505474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3100df847c891c434bce9adb69dfc5851f3430de36e308bf3a0fb69a2b3c9f. 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/SEUM71600805.
Dix ans de Zouk (Les meilleurs artistes antillais)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb1f62d145a1c69d69ff7b4911809a3e5e428703275628a01e0023099f09b46. 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/FR2X41557544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c4dd799647820c1a2ad9bed4ef9304d83eb08a5fddd24761612d5ce877eb9b. 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/TCAHX2401595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525cfa564ce91faf8d15c464f9b3fb70b0e198bee9dfcf837e3c203f1049066f. 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/TCAHU2405864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb71ae7af29022ca6a19adaae2df1ff76cc0f8ddc392b70cefcbb931cde9a35. 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/TCAHC2315101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc86f25c6cc58ef0667462f7e26e0a9721225f01e5719f6b03ca9b1873a399c. 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/ZAA641300274.