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 0x1351d0661126bf34d7799bdf5c18a595bb2baa7fc56a8c3ee19e3f92f5aa49b0. 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/529d51e8-1ce0-400e-be89-a25d73f57b8b.json and https://artists.proofprofile.net/proofs/artist/529d51e8-1ce0-400e-be89-a25d73f57b8b.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 0xbd3643d83b5a14b568e793b9b0a0425c5c02ffc31ce1793585267f6d90cdcf6a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN42077948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72db5dfaeb26179f5c4cb516c51c8ce74d3cae2e22249122a003fbc5a12a1c0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADU1833613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc16fba5b3dc391d3a42cf8224a07061f102e63b38a1942982a56b74a7c8682. 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/TCADU1833627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde71e445f6aa597e270e70a35baf29611d4cbac8f6f6513bc9b52bd81d729b7d. 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/TCADU1833629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334a3e709c112b93ec158901b6dfa5e7467a635386a35e488df9fa85be6a9741. 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/TCADU1833638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14d1408656224cd3bb87c1ad1e22b33d55f8596f23b19d86aaced1d34bac6af. 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/TCAFL2179032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54282628c90e6469fb7ffc97b156930e0ea2e978fb18bc61e7f4d460d24e1a24. 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/TCAFL2179082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895f4b2190379380ff7c415671f3f19db9dcacdd616c15bc3c0c2680b8008e38. 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/TCAFL2183959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d658743ec4f0711aa463f468ee08ca7f25dc296dc322ee2ce08921d30e8fe3. 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/TCAFL2183990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c08ba35413549ec941f57757c13fa048a0d29b08c5a4be08c8841f2595a275a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAFL2184041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73f418726860ef5ef896114f5aa6a0d8bae29395b9bf1310e2c74ba3921dc6d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TCAFL2184166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33dfbdbd4a9f357ae0e014ef3ce7a1067bebbe4a39bb8064bf5dded49f35f6a. 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/TCAFL2184192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf275735a271597d7b7d957e5a28eba69dbeb30ec1ca59b1bebab89c60b581943. 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/TCAEN1958622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d0b934acad5fa2aff024823212a48c9d281459ea206bddafbfaf9bac107447. 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/TCADX1834049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2040cd49b248c01a2196f19efcdc0dd6191fff7fee8f84c92acd7f7dceab67c0. 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/TCAFA2076372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d9db3401535a9eb0f9d9c12ef335ec71f3acc3611d564fdde7ee00522bf133. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAEH1911235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5f676efb49920f99e5abc8db7e9874373b9dabbe3eba2192de621aca1c2a98. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAEC1905571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0755d62bf28f53954526c17be8b732b155a62e199e9d0d3cef960239da56226. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADZ1804178.
Takkaru Ponnu (feat. Achu, Tish & Suhaas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99895d981350e2aca3621bc98289492fb290de236599ea560516cdc59386955f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCADK1739634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b535a2311324704e5bfe33b7cd3f7ed9e1b41a0346a6aeb10d7a4f87557bea2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCAHS2361826.