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 0x319ce51e292039a26a17efb5b0dedf0f4a5958fc3eb6ca31a79bcc1c2c3b2469. 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/35ee873e-039d-4779-9f5b-9cbe75a548af.json and https://artists.proofprofile.net/proofs/artist/35ee873e-039d-4779-9f5b-9cbe75a548af.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 0xc8fc5c4362ea75bf52f98341dd2284d71726b10854384780f7da24efa578d81b. 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/INT132301164.
Whistle Theme Song (From "Naa Saami Ranga")
Teri Roshni (From "Good Morning Sunshine")
Teri Roshni - From "Good Morning Sunshine"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd333c5579537f9f440a4a7d349ba5d307c5983650ea1a6407b6879af2ce6a434. 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/INZ031414856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdc87e603f2112929cebac89f105567de2c6db7678cbbb0f546e38b1a6695a6. 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/INS189710281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f273e0227dda925771b8561de13c8e6663c4acf061d022ccf45b8218dbcba4d. 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/INS189710282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b30d991d503cf9d9679081b92af83a046f6dbcbdcc74f2ed88dc242931f7c97. 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/INS189710283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4749bf26a443cbd6defa7e6b147552a8e7cdcdc0cca830805612b7594ebea6e. 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/INS189710284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215d40edc82171be56262aebec98d61557224223f72465a9497f17ef8b34f3c0. 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/INS189710285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef669a3862f65a094146f743bfd6adf1eb258a09cf92ac68b2abcd272e56dbc6. 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/INS189710286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b2df4f0ae4d5641c86a33fe235daf2403f04e16d79042d08e2769a81a6b9cd. 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/INS189710287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed73019d04cbd2dcc180df0fc91924ce2d9eab2585e275259a59ed2bffe97fe1. 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/INS189710288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe266ecf936b19de99d6b1039950859717ce9d39d659fee4bbd7c1e30f484b594. 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/INS189710289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949e1341818a85a57b5dfca9c3b732536f7d997a7fb5ae0fe18bc5336b66e41d. 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/INS189710290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a8728ae34b8acf898d63e73ca05419f85dc8e85a3db60c4cd0879b928e7075. 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/INS189710291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f8a64d345c7272d1ce34e8d08862119ffa35ce5a6eb175136d4a09aac2bb505. 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/INS189710292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec14e35bfd687460183f035fe0d4103043db3f4fa9c8de6839666c1541b66ec0. 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/INS189710293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248303e32ec96454814b9ae1a238a53c32015e8bf1940eebe04c272176b0351f. 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/INS189710294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6492a2af92af95f2aafe2cc2862c2dd59d1a0d25b729ed9d122ba0a3e201ba. 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/INS189710295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c9e4b255d2bb45808b1a97c36c12077c2e8e6dec6c6d227c830b3708399cc7. 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/INS189710296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3d45d380324238ef0a22b8dcad382e978f1852344f72ff3532e86a3a639d37. 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/INS189710297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521550cab7957b9c831acf0a7cccc4fcec491338edb8d59b5922a3fd2a3a1518. 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/INS189710298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62baf7f5f675b5b231bc208c82b5e3ff5dd6be06fa4c0da569b26346f5349231. 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/INS189710299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d095d5e56ed4f841feb6e32cd464cea3f70e622cf52b1425292c2dc7b0080e6. 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/INS189710300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7135a5f43ed8539870453c2e5d7632465e305bb3ab675162369cc2cf72d124. 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/INS181501461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe477cf006d7114d9cdf90ca70f7fb83b38a6974b4ab909c269c7111de09e4ba9. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/INS181501462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf6202dd6e0ade7793d0cc1824131e870861a1da66eb95e2fb5c90df6f15707. 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/INS181501463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a7ea1d93bb4b48645d371f7b279e3a5f3f04bc4bf2eb81c9f213f600c7a65a. 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/INS181501464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d37c6b583e42c17590b82125e67849bf40e262462df7e4dee1b3bd4fb2c32a. 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/INS181501454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2d67b5efcd81fabdfad4efdf436cc3da521664d4002da785bd8bb83f43005a. 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/INS181501455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f3674a4e672b562ee024349158be6c763b04dd71feea6bfc3f9679e019dedb. 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/INS181501456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e9ae3db813a362c645da73cfeb30dbf27bd922d2a340244b1ef33de6c903fa. 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/INS181501457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a193c17080118d0d57364ea71ec96736242987e4b1f801474209a73a0514ad. 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/INS181502070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e63393b3734675bfe1db2f2b7c640fb8668f856180649c20fae85b4d4ca4c6d. 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/INA090932122.
Etthukelli Povaalanipisthunde (From "Naa Saami Ranga")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b0c824fcd6b65af62449ad5c1d6e92996885a893aec332acbdb16958e90c47. 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/INT132301160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac436397abe67e4e0e58e2af48a273dea2ce09985114f8c14aa5812e87ed498. 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/INA090912206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210d5f9c91f77b2058e1616157dd697fe8883710034b24f4f77b6f7c78dc940f. 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/INA090510334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34df7da3965789291578ff1cdc65f75afa840ac89e82bda42d68b9d0535a555. 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/INA090510337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fb61a407d0fd7888f6382a70c036e03db2637ee31ef50d6b40f3d0f3682ef4. 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/INA090510344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4518c65de9e4b3cb63b1fb2e321d59f84f42307a07a5e5e4b700a94d92ee467e. 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/INA090510347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1284d94995a434160644bacb5a8ce62672735c392cac6329d06cb85d2b019ef4. 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/INA090510348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4ab74afcc0ef7369e88598440c28748abcc941f8e38d913cb2804b49f7453e. 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/INA090931991.
Neetho Unte Chalu (From "Bimbisara") - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb827232be41bf9cb55800562e926bce629643bf81a72bc40edfcce1fd65ab428. 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/INH102213204.
Badrinath (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe222ae65e0108b2a4400a0d44c6c3bb524331d051e2d2bf4e7f7d6a2793cdca4. 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/INA982200410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc902c5e8465c6da25fd9020fcf7c426d5fa3fd1c18c1c84cbbd1d09e1c0133. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/INA090209264.
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