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 0xf056e8aa196de77c0f9fd4d37a9c4e9e1111903ae628b7cad9c9e9bc85a3cfc3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67d45b63-d5b8-4bfa-b587-6c95329dc2b9.json and https://artists.proofprofile.net/proofs/artist/67d45b63-d5b8-4bfa-b587-6c95329dc2b9.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 0x0087c005bb474cd818b417a0ca2913e6696ec55764e8fcf7b5f973bb28014887. 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/TCAFH2098761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ef72fc51c32ad3df029c971859c235ea7127f086cd342cbc3898b9a91e7d03. 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/INT202404880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5541169701ec131b255273605eef4a5dcf21d15ad920c5c452533ac7f93eb66e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZPLR2430127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5236d4864338fef37a5bcf14962ddda22d21996577b15fb7984f506ec6c30dc6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZK6P2460976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3caee7854a15f428c8da15a24fb2560b7c27f1fcc22c1de92a865197bb19c42. 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/TCAHT2455657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d900498f84ba291f3e1bec5563fb9314375b74c9bf5b802afbf94e73f1bcaa. 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/QZK6Q2218251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b6765a245655544d4ff172171b29a540d72d2bcb05aba03e2e820f6173a6ef. 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/QZDA52142958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50806d7fee637c9ffd2330d32c28c9addf5e546ee98386340b4e311212c53fed. 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/TCAFH2060677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a15d228f2e123ef2855418d47fa11bad8ce9251d23e23b32fdc3e2822da4d4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAFH2053134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad49828fa91a24779656f52f6a4cd789159e65840197e84fd534e8ea8c02095. 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/QZNWQ2011371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70d415bdd9dac772a52ab422dc597f6f31aa2a599a587af447235d6ddbc86cc. 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/QZMER2010404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b97f6306b358b1e2c40a0f6c0d855dabb81788b42f8e7e4c47af42e5200b89a. 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/QZK6F2046719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388c3b0f43982678e303f4d7ac1a085e346e91aacfe800663a01931d9ccfecaf. 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/QZK6F2031166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78fe546cc3a4055e1db98a64273fb5f2db221cbc32a5f5a1044caa256d85b97. 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/QZK6Q2010397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ace7d881f407c37a6660a1693c7b37bba576c5d03fde4bc8c9fdf3718fe7298. 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/QZES82038998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdd78346a1b188d4481eadc5af3c321643ffb7ca7f211db16f6ab261106751f. 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/QZDA52082474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55b9495acfcc0ed1b8455051aa5f8b9b907c28d61663efb96541edefff25b8b. 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/QZFZ52087877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf778325c263075b05a6c94623cfe396b4c72da7cec1c72ac975c49ac27668a56. 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/QZFZ52061288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb63fb61f1528c7ac78635ef9796fda1921240e4c49867fa95dcc1aca3a1cbe. 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/TCAEQ2088063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230c51d7b4900ff8299aade43c07d42b1246ed0d243bc9eeaa75df2182186f8f. 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/TCAEH1970969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a38829143f63f45bbebde0cf50dd8bd2cdebe15c691abd5b35ed95ef55d208. 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/QZMER2024520.
Vaazha (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d57e6e2a2a3df6f541f95358dea0cd62fea371e70997437c6376d0468a08d3. 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/INT202404848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee4d68f9374bd5d941a6ebf99e23f9ab7d0b9be341e4e5e1f71875abd7d0293. 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/INT202404885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c1d24eb28e8ee8a9703ed32dbdfd162b533d369fcaf9b07311b5cec86cb4ee. 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/INT202404886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c116ec99d72b23a51feacdf90e2153c66592b5c1688554a328eb4e86947969. 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/INT202404887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843f238d9b50c279ece821d247878e9ba893c26d2dcc80c67075960e8ff05925. 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/INT202404888.
One Second Please (Original Motion Picture Soundtrack)