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 0xe60c44fd9ea75a7743aef88f8d0e7e0ea555c192a19a4e7648014e84e80da7b5. 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/cab4b261-4243-451d-87a4-da6aa98caa8c.json and https://artists.proofprofile.net/proofs/artist/cab4b261-4243-451d-87a4-da6aa98caa8c.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 0x67d4b567634459a8150ffeaeb3f16b1d72ec8c4da58c02bd1472f4c236b2d38a. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:41:55Z), 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/ARF060603025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1569e427ea117a5a9b9a5455fcee72d7ee6e53d9a8d516ec9adda717219c587d. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:22:21Z), 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/ARF060603027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0286313755e20310a1486c7adc93431cdedfbc7b73afdc3e8918028dbed4b5d4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARF060603032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e13874359dc0bb538906bcebfc714d72667d7ad1373034e8f299d61e2522b5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARF060603034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330d9f877387a0173f9ed3953eee97c4d542d695339f685d1d5a794623797d76. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ARF060701555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903d510cbac658a8e9f249a1629d69ddae3cbd7cc2f6acc2e4aad7ef8adc8b02. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/ARF060701556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf13b8a4989541ca7689bd0add7eabb741d28164c344f76044c8728cde4d7c6a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QMBZ91674356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d1d48e904f8f98f26c9b90886fdc1c306c81a0447ea7b585a988dd55c8743c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMBZ91674358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5727fa43d6b0f419c242bbec4cb979c8fdd008929e1e86fdff92bab4172dc548. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMBZ91674359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2673dc02e35e9855a2386af0d55fd0f777d704ec8b8f0e076c751ec7a0783e6c. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QMBZ91674362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7ca5a4064a60dd6e1fe1555e8d115028091a85115ffd1b4d52572184905458. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QMBZ91674365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290cc1f55ae5efcf47fa74e8debf64c43e14041a590e893e5531d7c883de5370. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMBZ91674366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x120200f4e7fd2793a1fcca84f16f7ef19641c9121342edd15788bf284a2407b4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QMBZ91674225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad79a9ab15c3aa0a8f4d6fd7ba4cf6ceb2eeac1801ce3869c7ead3099aeace1b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QMBZ91674226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e2b19f64c9b22cbaef408a9cb838c932502ef4f0a21e2dd8efd39fb8d4c09e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMBZ91674227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c887e8b5f0483201db6cc62279e0c3bea166081fbedeac45baf72f3e6dfedb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMBZ91674229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc934f7b83280f8f35830f69e49622858ddf0ca6e67d4047cbf434a2454c37fd5. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:25:02Z), 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/QMBZ91674231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060521e6310953c22aa5160807a7136bca56fb8e4dcf555600b06b87764fa49b. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QMBZ91674232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24809d46e08d392640246ffec950b0547e25041042c3354153f129d1819c31a7. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:38:01Z), 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/QMBZ91674233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3a1de4574f1314fc2fb1730bce4fe97c02569eeaf834afe0bb9db0ff18fe2f. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/ARF060603035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5a183ab6a82cdbcad3532d0a2eb4b8acb19310cecc1b86e185183a59770578. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:26:09Z), 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/ARF060603020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b53470ee8cf5e64098bf41bce7dd477eb0dac6929f29b99c6f9e5b8c6f85ded. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ARF060603030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe680c87ebef02277c1206ee37aa68c079aa78a04b26c2ee2ba3c58c78b592e07. 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/ARF060603029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e7100a3553243858d931762f8ac900940d271580225bb83b571cb8442ee59a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:28:07Z), 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/ARF060603033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2a97661b800cd1bf77dc0d986f971bf39ac05291f9bb25508782ec22771da5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ARF060701561.
Nostalgia Pop Indonesia - Katakan Sejujurnya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17b43bf3a6821b99ca3ee4877d4e9e9294e25ed39bf891ac44310b05c224aa0. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ITH641808752.
No Te La Puedo Creer (Dj Franco Pedemonte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e66c7821fb77e01d8fda38a52d5f74eb20dfc5fe8eba447d3710e07e4dae3f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:17:13Z), 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/ARF062000448.
En Vivo En La Gran Fonda de Radio Azucar
Superbailables de Siempre (Mixed by DJ Red)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a61855a15f2be5e5bc6874a19d8edcf21a71b45c1010b7fd5f52e49da90aa2. 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/ARF060902023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7351cfb98abd25876dc008088e1655d7be0661b50f23a6bdb2b07d4a9e68d39. 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/ARF060600041.