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 0x7a4a7bd60c3afc8a1da5cf47ff3801cf037da801512738074380f3ec641fa43a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da7e4d0e-edcc-48d7-94b6-4605f31cde0b.json and https://artists.proofprofile.net/proofs/artist/da7e4d0e-edcc-48d7-94b6-4605f31cde0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Acoustic Love Affair (The Seventies Playlist)
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 0x0231c39e92ad49f40a37cf5d71e77c120a1d4072bb34542fae680d61075b124e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR6V82361722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a46e8a47d02b8100fad0ee27b064fc872f0589007cc7fd60cd6215985120aeb. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:16:51Z), 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/FR6V82361723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4811955f82051490dddfb51cdf9b965064b9ff48c386cd31c374d8b18fd3f954. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/FR6V82361725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c47c05dff76800d3b4288633e5d10c37a6eff5c5bde2112073eb515b9ed147e. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/FR6V82361732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ef82a133bd1f4e0842f48fd78bd6919e498faeb783be2818c0d5ca9ac9e474. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:27:59Z), 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/FR6V82361733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4949239cfd6ada64da1b5a3dd4fe180872fdb75995fbb4eecfbfde9abb57c18. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:07:33Z), 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/FR6V82361734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fbbcdcb98e86e240d11faa7b07f832634c3ad9fa52f83d6c89775785729ae6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR6V82361735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca12cf4e1a3745c09a355e751be11dbbb5eec5f88be9b5b79a09614e5c1e521d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR6V82361736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8caa6a7622e84a4ad9c4ce0512da5c903adc49cb2bf912637e63026756f70b8a. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:08:20Z), 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/PHU011011680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884681d439d60b62a63bbe22e568e35035abdaa55e3d1d1233b91a0835f5234f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/PHU011011684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaca062e970d5c66a224a3d78b70bacde649765c4c617ef44f5875d5c07066f0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PHU011111982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102428e46bcdbf702f8b1233b29aafd26659b9ffa597f2090aaf7a431f654b97. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:33:00Z), 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/PHU011111985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44af0df6e28e9b8e5cfcd30959cf4b045f9715c29461d271a6e1a7f5b397623. 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/PHU011111994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b346a1ab06ae13a9188a5bf9860b4fad160ac525850343530e5ccb53ddf92d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/PHU011111981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a287b48053f6d78a5d8446739616522af4029c9496de5dc656108827e25535. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:05:49Z), 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/PHU011111986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece5f4a0f66c0a8a09caf96735d6577acc840f6a05ccdaf28ff0ba4c69a94af6. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/PHU011111990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418f7c415469d39be376a0e8250d8106d916dbc90463899f3755793cd85b6308. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:10:29Z), 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/PHU011111991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68527aae147746c4213552765020e4df2cbdd7a5e695363e52b5b674f26b664. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PHU011111987.
This Girl Has Turned Into a Woman, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90736cf1e4d5f50dcccad64b1995f8d9c7654c3b8fbdc9354c7cfa8b7878404. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/PHU011313056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd819850f64c1f768c99c7b918ee5f11685ff5ea5ecfb26e9dda06a18a96cb9c3. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/PHU011313057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0615a3a79024cf19518160de212bb1850e08946a569486c327161ed94dc446. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/PHU011313058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b9ce0589a0dd6ee5112e992a64589a95cf11f6d4188856e0842f695459219f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/PHU011313059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03390fe00afb26a156569ffa5fa8b62cfa768dd18c215ff7fd150adc4024d972. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PHU011313060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5acc43cb38d890aebc39b3872891016522b68792f11e59d63e19793191ce9ab. 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/PHU011313063.
This Girl Has Turned into a Woman: The Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c7f5955fa18d7b3b38e1f9abd4ac8b787d518fc13e1a69e981c06377bf0238. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PHU011414694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26528689fc69feb691d77ffa26e93e2fb14fc0c91c8b028a5ee3a194aceca837. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/PHU011414701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09bb7dcf29e82f9060b5b549a3b1cb41bd28ac19e32dcdf18254a1cedec3bd6b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PHU011414703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ab9c505509f5589e38234be95667485f38e01df6b9b549dab6bb37c7698c43. 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/PHU011414696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54626b27dd842b308ea05137c84bd2254c433bc463ffeb0a407a130f31103fd5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PHU011414699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71f0989ccf5ad5a56736a9310a3225f5e08627ea0502c1b760625ca96338ce9. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:37:34Z), 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/PHU011414700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d87d30e1fa8baac5f3ec724afe741888a3f8e2a2d02be3c72c2a97acdd0d51. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/PHU011715604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc619b21fc5c98bc89096e956ceb9829252c2c9d3178d58972faab01d645a6ce3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PHU011715605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ae219496743c83c0fa1091618d36072e60bf58a8e833835bf92590f2c61ff8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/PHU010710135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc8c0b97fca2ce203bd37e534e72369b11e72a813095b309c609cc65aec88ab. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PHU011715609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23c57270a69d73a0c8c5756b5b02edd60fcd98a71e1b00ac37edc9f3cf0649d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:51:43Z), 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/PHU011715612.