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 0xb61f5562a16b2b5411dbe932cd33f54187317fb9c1acc95835233241e6fcd3d7. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9af6fe63-818e-4f1c-bdc9-b463adf64ee8.json and https://artists.proofprofile.net/proofs/artist/9af6fe63-818e-4f1c-bdc9-b463adf64ee8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sophumelela - Louis Bongo & Lacarte Remix
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 0x427967fb147d19eb00e5937095d8b8715f0256e30923a3b45e48804e07f9f42a. 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/DEY472370311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bddc18cca0038ee2210b81184e3539640ac2e04b987ee6c21ff613c69e0427a. 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/ITLCJ2100394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499b17701391fd36e1de2c9c4e0c30c6a3393aae620a29b9612b977767759d6f. 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/ITLCJ2100335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef8dedbfaa0641e9c61163e202fdd021223b8872ea69095fa091f7591f1fd0a. 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/ITLCJ2100391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ec717d16d93a6775522e7833973aa84dda71193190c76870c5ff21aa1e04d8. 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/ITLCJ2100522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9351441eb1a76acdb3094b3fc3eb77b1fc151fe30f70811277e2ffe8e2e98493. 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/ITLCJ2100338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d868dbdaee6f35a711ba8b186f3b2f733c54cc7585c3f852badab293b0b9ba9. 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/ITLCJ2100397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaecc1cadb45f425c07843545e01ddbdf38de0c281951f9bf0612f3d97b54144. 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/ITLCJ2100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x621d676d7358b9f0947ce35327c3b6417950103abe5f96c7791604773c6478c3. 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/ITLCJ2100400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b98ea98c4fb82a67730c54d397e378aea0e20369f8fd4053356981c7aaf0038. 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/ITLCJ2100410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9295f8e8881a554b1b4aaa0a1edb3977d43228dde87ba699f4505588e9ed4b72. 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/ITLCJ2100411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69830e1afd18c0be8ed4887cedd736b1457c3ceadcc8698a01ef7833c3f9d2f2. 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/ITLCJ2100439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b84194853c8c538ca6ed2bfdefc5cb41e950bf5cbf8b42323509ba4037e6892. 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/ITLCJ2100432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd6f02eda8f4eacf74a8b961c4465195351244f1bd6a42e2d2e8a688980484f. 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/ITLCJ2100462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e87af56178a86b5f236558f10c779e66b3fba2c9f3789a6d92fe03d4d66be9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ITLCJ2100500.
Nothing But... Afro House Selections, Vol. 22
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df89d149ec1d1522064511e24b30a8ea5f0f0cb0a142f0f36e1fcd74329516a. 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/QZN882512955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70ccfff36f1be754195a91675cf070593181b7924277b7e6ae1f7c31b5ab3fb. 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/GBKQU2424922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd6f396688582aace0ab43b33035f953f698709f14f526e1a61f2c06445f9d7. 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/IT5XD2103828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8f753341188571f0a0fa2f8b466487466e47b38e05ed336c47a9e8f29511e5. 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/ITF3A2200040.
Afrocentric 100 - Past, Present & Future