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 0xb2d2ea39118206298769db290cf7da1280b461753c949864fbcc0d07d66ca28e. 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/199af867-1a68-436d-892c-cbb269e2290a.json and https://artists.proofprofile.net/proofs/artist/199af867-1a68-436d-892c-cbb269e2290a.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 0x2fe982f00dbabd31c7b5281f51bef8fc636bef40d45690ad674ef600e4ce1910. 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/RUB422101730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b72c3299eb879ae6366295e88d39fdefb252a31e281cb30319dd9ccdefb270. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/RUB422103160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fa27459a2501b1d977f3fe8e1ff8f43a5bff58b0488cecbfb8b9069bc3080d. 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/GB8KE2205040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe056572e91490a39340e850ee5b73f12590961471125e29e47bf905e87bfddc6. 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/GB8KE2205675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba98018fc5fb257d2cba4090efc656d277f0104f0e3fb7d828381437b2bd12f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB8KE2315637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fec847b8e84aef6f7f130224b33ee3ebe92af9e2521d1b7b03c3c21c24b387. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GB8KE2322740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c54bc2352db23b1cc4245ed4a1bb205494c69426e0b489b92420ce38a5773e5. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:10:44Z), 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/GB8KE2325662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f62662c9c3d3736ea38f59f354e7f242237f3b14db2889a4ffd1cc85ee7ab7f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:11:47Z), 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/GB8KE2400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633dbb5d9892487b73bfb54e2e18c3ff5641d08ef88cf4357923bbeaf24b4f80. 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/GX89G2499579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b43792c6b3204f729372e03d96197809d65182284e1e93a4c447d6dd96a6c4. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:48:56Z), 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/GB8KE2401843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f4302fcd4863a4a653692b6c5647b43fb97c8cc8965699c98cb14b9d191fe1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/RUB422400900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f33c0c2c3098c01e3d2908de8096407f550b5fccc08ac006a4c641568e6d366. 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/GX8LE2412517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316620fedfb8bd74af8f1621f2245c33ea5ec6233bf4ca13fa41b4d3c4edcb80. 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/GB8KE2411364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c804a50969fdce37a5c6a7e298d09a7b0d327355a97d55725f4bb8307497878. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:06:10Z), 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/GB8KE2418870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x646d433ca387fc3fddc208d497913539424325d53ead777445308ef7d4730957. 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/QZW9M2462415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ecde85928a5c318c2800c8ab6efc75e3c2c552b60881e859401a7f022fcd14. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/US7VG2590753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab99e95a2e4e6446bcdab2310477ee65ebfa4b6f3624ec1889a21e3fb747edf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T14:10:03Z), 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/RUA1D2511857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29042d0d7e3f6d6c1f0381d81dd54ab1e7af1cd527a3325719849ce650953bf. 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/GB8KE2504729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04197a7a59e4c46d5f20aff7c5f511d067d4b480bc3746d2211772c8902ff337. 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/RUB422500335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddf682528d52437edbd0e5095f62849f447066a5e08b84dbaf54709c8307323. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUA1D2545919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62503ef4f69cb1f8e40dd228f01e7412b58d9a04bbc2a37bbcf3540ed6d500b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:44:18Z), 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/GB8KE2509406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0cdba774d4e1aec24d53c43e4ed86d1060d33dd69b27f507bce8973a24ddc6. 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/GB8KE2521765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287dd08227b4ef6520a2b057817a76779dadc9685c033b6d5fc07af410c905bc. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:57:22Z), 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/GB8KE2521793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5193e52f69a89ef151b5982a32b15ca9030694a442b2e8447e044a762120ae7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CZA232501483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb833baeca0ec9c51b330ee71f372f60bf030c1d61147135179ec03583c2b3bf8. 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/RUAH62503707.
My Heart Is Broken - Dj Quba & Sandra K Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16620c314c4a72df0e53c499b699deef8ffa6d787495b3d01bd8e9f98e402de3. 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/GBKPL2014292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4befd30ef2bbb2fe5a2dad1c9f1737dce497513854b8091df004fe4c9c28b32. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/BR1BO2000016.
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
Every Single Day - The Distance, Igi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c0263d754a6c1a1c4cf9395520c6da06561999e77e590d43244ab36a6a825b. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/CACWV2045321.