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 0x0129cb296aedf384f210345002d8e83742713053e4feab7a1b78a39ac2e0edb5. 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/d740be69-4774-41d7-aea1-86cda22dc000.json and https://artists.proofprofile.net/proofs/artist/d740be69-4774-41d7-aea1-86cda22dc000.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 0x486b6f0579b119c63b8de1b7b245c4f5f3a09408cdce5b69d3a538f87227e00e. 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/KRF251900061.
At Eighteen (Original Television Soundtrack, Pt. 6)
At Eighteen, Pt. 6 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8e924a5fbfc55e46c55de59258d563079fd1f041ee5db05576f7a55499b583. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA251901431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af1ff9f817e0068dc3b9bad4a0b1fb4b0ffed41fe68129e354edba4ff3e7b49. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/KRA251901432.
At Eighteen (Original Television Soundtrack) Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1d3a827cbed19fdeec49f56c04ad3b731553b3adf4d6eda711d032e639a88e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:26:27Z), 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/KRF252100042.
One the Woman (Original Television Soundtrack, Pt. 4)
One the Woman (Original Television Soundtrack, Pt. 4) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0a51d700f7c95c3efbfacdebd01be9d8bcea903640e97f45131b979e0b65bb. 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/KRF252200148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fc5794aafbce62366599b0cdde93d6e73e46d9b7f202b9857de42a0a9bd3ee. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/KRF252200564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c50aaa7db1acd98e894f38f5c32d4c067f6768d559dabdb8b5db9607cc9fa9. 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/KRF252301099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c50aaa7db1acd98e894f38f5c32d4c067f6768d559dabdb8b5db9607cc9fa9. 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/KRF252301099.
Blossom with Love, Pt. 3 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779e5e34d97a1679948c43bfecafafe9f18f8e2e4ae4d8924a71c1982b4e7a49. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:47:58Z), 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/KRA492300931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728b4803f1a8229f178383c3e76245b03293a57fbbb96688424539158c402b74. 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/KSB022340000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524572fa5d9da58fa598d24f4805c86b6fc596b628c51d4415c57d27e0c9357c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:01:27Z), 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/KRA252402533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd82b678d4cf0a64d0790c17ab80b3bf57a94d02344a869dfcb07e82bc13d13. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:28:06Z), 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/KRA252402534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a21112c9c2020b8efee4a9d5ce83a9c2cd51d1e332d79217186911ca88d80d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KRA252402536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fa8767e19a9e90258ec7e19a2e9b33857d713c71ad891506a1fab7f230b320. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA252402537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a347d75559d77513ff65ab9d2de07629f5d2e86469f7d6d5b8c3bd53089af5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRA252402538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9af8269d3deb0cb8110de5f5fa7d8b3db60df38c1010f3274c17cfc4e09643f. 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/KRA252402539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bf0961a846f0b0d2309f0141c10d1ba4c73f25358c1f7a9c4f70ef4838399d. 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/KRA252402540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f46f750207ac469511c0924dcf7fa119ffb55103fb6f1ed33c86db6909cc30. 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/KRA252402541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239deb9c6109edc015b7f10d1e32deea2787fc7f6b08f9ee4e35f2814be0d63b. 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/KRA252402542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bd114f4e21223b4f2e4c39c20f8f4f71cab1f20248bc2d8a2f1a12d11b3bab. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/KRA252402543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41949a34159bf8a8333c38e975657e67b76204e7a4020a28d9d7756614e96688. 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/KRA252402545.