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 0x825c52cad734571c24f4baaae3c83257762448f943ccee862b5950aae717e14f. 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/c5df4d49-615d-4b14-accd-ee7a75b93b65.json and https://artists.proofprofile.net/proofs/artist/c5df4d49-615d-4b14-accd-ee7a75b93b65.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 0x8e4f435a7f06b40bef55d5acd4d92441c625be1f169ddec74736fe3288fa3cef. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/SEPQA1400897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df83871aac815a10e5363b9831cc07536550f842a22829fd8999cc7bd4e4b90. 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/SEPQA1500438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89bc2da83c6cb12fb00b63da1207ec6049b649ebabd36400509cbf7c6e42891. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:43:34Z), 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/SEPQA1600424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6e3c69e80f7e12ecab755c84de45624ae301443b22b31992ace45562471293. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:27:31Z), 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/SEPQA1601231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe490bb99ccce5c3a39f5122cf12092118139ffa33a9e23bfedc275401ffd5fb2. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/SEPQA1800268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061c09b476b258d753c90276dc19ee9f5daeb39caa51f4830514b8dab067201c. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/SEPQA1900106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b6a921362062fba4faf4aba92a50cec0391637c497bf7a23c930fedd034a52. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SEPQA2000133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3557175bd856e455f5ebe8647223643a2843c429a61f49d0530887f5c3b81c77. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:59:33Z), 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/SEPQA2000176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e7996a65a7bc4a86cd7587627614db6c067424e7682cfcd17d9535824278c5. 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/SEPQA2100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff227a65609e5d9dfb01a8c2997a45625219b83d84df90d32ab4acd222f6bf7. 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/SEPQA2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e41e1d32a6c3b494f5436cbae9a2a7a60f7476575844342dabafd2f214ff8f8. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEPQA2200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6624feb62729af85f85830e6b244310e6f288f47526ba6d86eb1dc47bec5b2c5. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QMDA62283092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e02937e50f7a3cc3d0dd2ba3fc749b950b042965642633f0f6384023e965fb9. 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/SEPQA2000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9a19c9505fa160b4c3a4bc19d4ca666920cb89001f9ab298abb9a252cf1901. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/SEPQA1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e7996a65a7bc4a86cd7587627614db6c067424e7682cfcd17d9535824278c5. 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/SEPQA2100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff227a65609e5d9dfb01a8c2997a45625219b83d84df90d32ab4acd222f6bf7. 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/SEPQA2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df83871aac815a10e5363b9831cc07536550f842a22829fd8999cc7bd4e4b90. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/SEPQA1500438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4f435a7f06b40bef55d5acd4d92441c625be1f169ddec74736fe3288fa3cef. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SEPQA1400897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6e3c69e80f7e12ecab755c84de45624ae301443b22b31992ace45562471293. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:23:03Z), 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/SEPQA1601231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746e70564431de1d9a40cd2a799cd77a9cb426db071aa5d997501d520219ce35. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/SEPQA2200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe490bb99ccce5c3a39f5122cf12092118139ffa33a9e23bfedc275401ffd5fb2. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:43:01Z), 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/SEPQA1800268.
We're In This Together (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147517bffe71a7f0bcb53880cfdc5bb213609a3ef43af9486a7e18e6cf14fb27. 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/GBEWA2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4cbb8a1aace17a8571d3d802f727e217b89e3ff6eef4e7db120a8c587b4a9a. 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/SEPQA2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae1baa674778854e50a4436b247b647ec56515f6428fce2bac98946d8c99fd3. 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/DKAZA2200227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d41ffc90315d98a8bc27d582654c676b33ec60bbc86207b424de5db616facdc. 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/AUBM02100351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b04519c97c9eefbd88891528c1987c29b7dd76ceccd31f53551cf6dc5de8ff8. 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/SEUM71800287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8af3b3dcfcc76aca894478cb6c1390198d3ad54d5fc350d7048399a0b3756f. 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/SEPQA1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c6003b3899005fdaf3a7a65ae97e2fa80e322d2fa5722c472bfaef01891561. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-22T01:19:41Z), 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/SEPQA1900194.