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 0x2c700c681e6b1c73a27ef138d44605c4ed90a02f80c488277bfdf91ce7fbfa6f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eebee8b7-4e85-4dc7-8585-8ffc42576ce3.json and https://artists.proofprofile.net/proofs/artist/eebee8b7-4e85-4dc7-8585-8ffc42576ce3.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 0xb02c869dc1d2e8d9bf2f5de1db14036cc2c5ae950d3568b6082ac2b6ac4372fc. 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/DEY472378831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58301e7c8dbf4345ed21d8db3edbdf97f9f63fbf5dcc1d1dbccca002db14e8b0. 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/US83Z2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4a7ec19b2adb9ee2d7d4e4806902a62514c3ad0f840bbab51e6aaf6c54d613. 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/QZWDE2429924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc70dceac35283a94c160814ce8f754d6b76a7b40db53655ea23da0923019865. 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/US83Z2493104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aaf145f7c006e7946284f8b6b182b21eab2eb9a3a257fd7f975a688d4965453. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/UKLVE2401484.
El Rythmo De Verdad - David Hopperman & SLAMA Rmx
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd3461b5e9afcf24ad92da383c09d40dd524f125b2762b169ff7d1ba65ae34b. 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/UKLVE2401485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1312fb9f68bc1f34a767e72da3a335a9e0e35cff95ae9b316600dcb74611a79a. 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/DEY472473057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafb12492e0e1d28b3deece973cca054c11876a6b6817a7b925671917bcc16dd. 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/US83Z2473382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53105ee54af3d856a0a0fbc1e5c2094a20ff381f0d67b9f08c96230a6ce7288b. 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/US83Z2473384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d08ff5dedb023377a5f32bead0c1e9b80269cb26626cb90c2103ad8adc8bfee. 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/US83Z2473211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1508f9daff2282bc728c7cd48ead3163fc9def17c8df0ee7415d4eb7179c9722. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US83Z2473213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38d613dc89ffdb645a13f356a325eea6bcf531372f77125a0f5a64320ef95d8. 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/USLZJ2421517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200762a4aea4d773cd7ea8e2285d10a2678a435db2e8f2da1ca9cbf2054508cd. 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/US83Z2456971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5952aab087d0815b04a8640593c5ebed166c36179daa1f01d4329c3b1dde8f05. 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/US83Z2456972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c74b4b034149382ea0706e2aad6fb6c4712cf48eee1ad9e04b820518149e7b. 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/US83Z2456973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf639026255441fcf844c3c547f44efd708014af2573a977640571e706235f4f. 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/DEY472378829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4068c0c8630bac3aca8e42cddc5463b0b9f2d3b3fee9b14f55f65a556f6cc21e. 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/DEY472378830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e92323320c05be48db0aea1dd4ad281fc5175fef0dcdab5b73b03d181c5f770. 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/GBKQU2329216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8aa7fc59f44624445b62e3112c71cb1b2371d4233339f7408f52c685963723. 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/ITSV22300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419469abe8145305b17dd0626004852fc683a212337b3f5a99726fd281f553af. 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/ITSV22300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7e33727ac8eb1bccbd4604c6c998466c6f1585ebca2106217e2733f95c3610. 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/US83Z2307056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6517c08b11ecb9a7723a6601da53ceb64ac9c90f74470898ff73bf06eda295. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/UKLVE2201310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b0019a9fb610ad59971db2ba7e5f076b039b832eeac12c41236a661f47487a. 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/DEPY32200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e4a87080693b04f091d90dbb387ce0b60e2bb989052a5062afc46b1d2285de. 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/CH3132100448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ad4f80d66a3e45bc0622c1f5f5ad58735baa49c47e36a61c14f3e2c3b778ba. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US83Z2401141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc4ccb574eb196930580122fbab24e066f58b1c8018fa71494694560e7f5437. 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/BXWGB2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfe18eb9fd8c73b661195dc0d1de2ebf4b2e81aeb77747cda8bd93961348c09. 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/BXWGB2300087.