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 0x33cabcdac00201b4e9e9d1de753916a3013b9e8d3fcac324c065121e2b9cdb7f. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d261089f-a867-4a69-ad4f-36d9b0bbac52.json and https://artists.proofprofile.net/proofs/artist/d261089f-a867-4a69-ad4f-36d9b0bbac52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Highlights of Ramayana Story, Vol. 1 (Instrumental Version)
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 0x0d6efb1431c09b3c02775948a5feec9528468de1336c1ab4981f296546062931. 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/IDA130908301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e888e963fe8be0ac084a50a6b781446e421989e25e3fb7fc5642f5b0cf88fd0. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/IDA130908302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e7e54e1b6be054983fcd8587fd025df47df213cc04f721c13c6df1ca2d31cd. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/IDA130908304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b67e17f26d404ca3901c65ab48e9a07c240b72c5595d5acd02f33bc6cc3a8e. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/IDA130908305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb2c13aecc345c4efe06be0fc461760060765b4f20ba65ce95db948e98e2f80. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/IDA130908306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d74d83cfd99904e785655112ebbc931c522cec042696c9c927e954ef9fc4e9d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/IDA130908307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa612b332ad70f0bf6771aa21519e8eebe51e0b515ef41a2ac47f307170d25150. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/IDA130908308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9562d8cd3f57a134ef8f490da11f0a313ede694a1cad9aa1d1d3b18172f1eeed. 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/IDA130908313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5867df270d7c91c5c8a1aa76682b101bbe86cbb62784329087824421bf004cb5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/IDA130908317.
Highlights of Ramayana Story, Vol. 2 (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f2c431c01c8485a8d122defcdde580e87e9a5dad8a663b0fdb3124ea59d3d9. 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/IDA130908402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75be68595239bf138cd72eceb0f6a5e839c4cd16c2417a54c3defe2df6a69fd7. 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/IDA130908403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48771e613694de6dfa801429a5f5aa83387fd0584282670467bbfeb96010f74. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/IDA130908414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed59299b193105afae758d86c6f4fae15db39de95797031d4920d08f0e56c8b9. 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/IDA130908415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b39a9750985f519c10a96e7205c919527b34dbdd0584c07bc586471317d403. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T16:00:28Z), 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/IDA130908416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e74035c11d432e06e56f997468b0468cecd57eb4a5690bcdc5f7046f767e21e. 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/IDA130908417.