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 0x433c8cc3bbcd369a77867214a77b084f296c35c35bd096a2600d6272b754e1b5. 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/761ac83d-0000-4ed2-bc31-a434e0d6436e.json and https://artists.proofprofile.net/proofs/artist/761ac83d-0000-4ed2-bc31-a434e0d6436e.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 0xea7668d13d3504bde9a0fa6f5a2c638c1ad3b05bc1a56bfa3457e97b883f3236. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/ARK481800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215d77fdc40bb3e1a26cf4bf0c7b327b9f00bb8d441d7bc26f6b62fe38e5d0c3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARK481900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64503dc98015042d70387aad1ca89e4b56f3db0ba91356abcead896ef550029f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ARK481900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9031203d77246a58f86350e40bd03354080d3245e25384ced6606519be1cf243. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:41:21Z), 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/ARTCK2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb37f55bf22c27e6e8dfdf9e54e9a276f4060e8c4b9706bd83d495c2204ca443. 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/ARTCK2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d13ddfcdc948cfee2c25e4e5fedad97c7b7bd1e134b9a48cb5af5911c2ecee. 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/ARTCK2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55779862d51a443eab2364f5224200ae1cac6a83c29ace07c82a03dbe12bd385. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ARTCK2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048563bd34a483302eabe3edc90d0222cd3e56eafa448587d617b9511fbc377c. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/ARTCK2200009.
Me cansé de hacer canciones (que no salgan si no estoy llorando)
Intro: "...al mando siempre va tristeza"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e50f11942175a02fa4f330f7a37e488c4af921487ba5f7e4b98d9f3432c2c55. 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/ARTCK2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae267a39384c7e37f309d6cd551c4083079a9f6af1f6ae2e9232316fd9a2aff1. 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/ARTCK2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e0651f165af5cd3d0337bcee3e9a6c9da50b07d71c0250c423c9de344c7c6a. 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/ARTCK2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb1967712b1d9a0f1c912379705b2b9706bec95005dbcdfc48d4f25fb04decb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ARTCK2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e79e2df95faeb3e4228006ee6ebb42e98fff8e629852c31caf6b3ff0a5a890. 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/ARTCK2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa1ba5782cc3ff19ffccbb8b59c64b3980507f502a7121c4166c758dab10d70. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ARTCK2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd26c6b475f9123a09068ae68e11675a2b6d906184d5784d06a5066caf8c577. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:23:29Z), 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/ARTCK2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9a7d65375caff3c5804b825b14e7081cca99fbe2a3c6c3a6f3ceee26953fa2. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:52:39Z), 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/ARTCK2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eb77ee591c72ac647e88c6824fa643b7eb03ec22a1120f7be82675238bc6b6. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ARTCK2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83eb77ee591c72ac647e88c6824fa643b7eb03ec22a1120f7be82675238bc6b6. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/ARTCK2300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8db30400c985e51218582963259553e32a527df6f800b8c874ea902cb68204. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/ARTCK2400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fab619feea9da33d1c44ba451d13118acfae42d5bd4f8df7633479bc5f1864d. 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/ARTCK2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9a7d65375caff3c5804b825b14e7081cca99fbe2a3c6c3a6f3ceee26953fa2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ARTCK2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a209a41db95b816b53af3460eaa230f33410210868cd3be35c0cda8c872634. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/ARTCK2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbbd7c1d60ee936d464efccfe32b346e8640bcdc51a3657e444f42fb6c8dd44. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:33:47Z), 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/ARTCK2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fab619feea9da33d1c44ba451d13118acfae42d5bd4f8df7633479bc5f1864d. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/ARTCK2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f22f20f5efea258f7c162e8deea547ed0c9bdbf73e416c6aba5528d78f026a5. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:33:21Z), 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/ARTCK2500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af91e336c5b60811b5f9794ed5a682953c385da3d889f341458664ac49ad093. 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/SE6XW2335206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcefe63f299304f3b6cb3ca28ecad9867ae3738e44e5605004ecd2d98c56739. 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/TCAJM2567019.