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 0x03f27a39bf56407dcb80e915edeff6ff82dc87247e01cd7a4a5f0b1e98abc929. 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/b11cd264-d0c6-4f79-bee1-93908449902a.json and https://artists.proofprofile.net/proofs/artist/b11cd264-d0c6-4f79-bee1-93908449902a.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 0x227e28b6262106d6d83d1b911e3b34301de8a945377aeeccb7a9fa10a2aa2f76. 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/FRX762205744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a6e114a6965ee17fa69c6f36402f3a6fa432b148a7b623c8c09f431c251bf3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX762205745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227e28b6262106d6d83d1b911e3b34301de8a945377aeeccb7a9fa10a2aa2f76. 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/FRX762205744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a6e114a6965ee17fa69c6f36402f3a6fa432b148a7b623c8c09f431c251bf3. 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/FRX762205745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4389adf0829873c50eb80443cc3190e4b1447234c1a2d15c310717d35716a16. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX762205746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75650f8ca303b2e4b0d30cb0237321b2fe174827b8c38ffc09cb344944a6907a. 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/FRX762205748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab5afdc996616f2b81aeb958bef256fb2e3941ff3af02c3e0a845f2a69545a7. 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/FRX762205749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567985c3c04f544adc6d772ee98cb92ac2965a5916b0dd0b90233e5cc7882d60. 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/FRX762205754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c38d879a6b9b15c422f2b513ff653eddf2857c5ab565f6d486d7332687f430. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/FRX282240217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c38d879a6b9b15c422f2b513ff653eddf2857c5ab565f6d486d7332687f430. 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/FRX282240217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe348241fe743ce92500c59c5024a60eb87e0e9fa6d155d83b86acb6f475af14c. 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/FRX452221876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac077bffeeb48a28b4ebaa46d2c07ebf2214a40aadb2e0c2617ab51966e7cb5. 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/FRX452221879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b2db35faf63e10b0a5f6205e6705255564e723ce5fd541871faa154408f259. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRX762205765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0ea30b1608d237578b1c692df040c89539a5a66f2c03f9c29ea8fd47f6adaf. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/FRX762208570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c3cc8f538f40abbd10751a2ddf2ec597a0ab2241def3b64c28140751b0019. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:52:31Z), 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/FR59R2353016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1c3cc8f538f40abbd10751a2ddf2ec597a0ab2241def3b64c28140751b0019. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR59R2353016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa3b985030cb56f77bd4c59b61a3d69d6f46976a7fe9c96ee01ff9894966e05. 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/FR2X42406929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa3b985030cb56f77bd4c59b61a3d69d6f46976a7fe9c96ee01ff9894966e05. 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/FR2X42406929.
Esparciendo mis cantares/ Tan rápido me olvidaste/ Por los caminos de apure/ Dile a esa tipa/ Caminos de Llano adentro/ La perra esa/ Si me das a elegir/ Te lo juro/ Se te acabaron los tiros/ La negra que te escoñeta/ Llanero tiene que ser (En Vivo)