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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cda7a2c1471ce589f3570d5a4a5fc7b1a550b8a1cd4ae2ab1f907f5d30e84b7. Chain 2 (Bitcoin): anchored in block 953620 (2026-06-14T09:36:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1e58d647-6be0-4ba7-855a-1be65e40fd9f.json and https://artists.proofprofile.net/proofs/artist/1e58d647-6be0-4ba7-855a-1be65e40fd9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vinayagar Sahasranamam / Vinayagar Ashtothram
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa53063d1abd4f1279580e22552e5904e9793a0fe5507975971328339cb61c8a. 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/INT131810805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497caa27f0da41b46658f1dbbec3295db096cbfc0b6c9c53224a6276ca967763. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/INT131810764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbffdca48674c6155a9dc4d6afff75d15b36157faec88522abcbf615a4431b31. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/INT131810768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31e35f871db7b4b4795ab646f9f4c6e4bf6d021da00fb78d963a5d18ad67fb2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INT131810769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3a36840320bcbf86d22c3345f6a8a0aef82bd32ad4df2d7202d90160f792f3. 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/INT131810775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b085904689f6c70e314900a960c344d20da1d5c66cdf7e30979bc0699d0aed. 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/INT131810650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e85b3abd2bc653493f618312d0b00704a9ee73eda791fcfc1b8fa9929fe4516. 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/INT131810655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd66b3469f399a3c94ac4533cab2f6b28545b9bda7337b1c09227a37928729a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/INT131810543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9490423bb35e4aa85399e020ce791a8cda58a046bc401b59d41e21dc73d0bcaf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/INT131810545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c37b1a1aaa3d75b4441d96ad37d7a4f7fc86fe35126e4509d9d28f7cfd8908b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/INT131810502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e178138a1df8770c98f336defe7d2371d32d68f06861f0aef1f965f98c8494. 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/INT131810505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ec3ff5fc6db7e49d14eb8f55b87d64716ff78975dbda635767f64710234591. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/INT131810510.