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 0x54e19e789907924b8f8d41aa7867c70afadeff3acba779ca159cd162b2685513. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15e42efa-ef92-46ed-a5e4-f7602c264821.json and https://artists.proofprofile.net/proofs/artist/15e42efa-ef92-46ed-a5e4-f7602c264821.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 0x76d64562e22139aa802c3f86d6562dc694aceba062fba9dd8b5d1d1beb5fdd54. 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/QM9AA1658157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd85094d8b6338d27eac33ba6f2e629c429e946a2bb9e885c5778d460a502bce5. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GX89G2272297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4402aafee16e0112ca0b1bf265811a9c7efbba6063f3378a47922f25548d37cd. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GX89G2272160.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c640397233c50d884c9265cd0bb5b7aba2caa58c9ac793566070e801e6eecc. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GX89G2271973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5deb678bb6ff0110ef0db2217bd4a2db33ba9e6ef1f351c8f9f930b507478c03. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GX89G2272250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb7a44715f875da014752dad6de4f3ea8a3327d1244df0f81e8351b0ad473da. 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/GX89G2271516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fac038e80856ce72b1d9eba0b45300947f96ee259efb2dfe5b8d13de4342703. 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/GX89G2271390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cc39a06c08cce1cae69329a39a8c88f2449754b464dd714cb0abef6a98506d. 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/GX89G2271696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520d8b7df7810291bbd958d294b16cdd57de0c7e7d589e11b6550afa23d38530. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GX89G2271438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e88510f151305efc450f35b13210f1cd53ffef9480cd98a026247897f64da2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GX89G2271448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9babc5c07f9c8fc8fcf4008dff6ba4c74ee243559cbaeb948e135871f1b382. 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/GX89G2272462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cef2f36e04336cee2274fc5fd7bbfbe2298a429db7840dd92126f2684826a2. 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/GX89G2272452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117a50ffc5cbd1195056ef4da60273e0c3f3474c7be99481c42d7edce7ba125f. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GX89G2272459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6c1e999318e56e9767cbb391915e763396566b3bfacc7da48d186d30d846aa. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GX89G2272481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14c62f330f52d614a8ee790c7c9f959971abf309186985f1c0ccdd4d32ca841. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GX89G2272553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4e07abad2102b6858a47a06195782f7a9838565714e3b828691801e60e2690. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GX89G2272592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec42cb57e68a4ee539f0f63338ac13d556172bcdfa43e5f6b4d071d10b7b428. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GX89G2272621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcafd22babc373b35b09f7ef3e2ba4f4215a1bb70c717679c109b98215c1f07d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GX89G2272627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf6cfffc69f03fa7af2f2a26c33b1d3a78af20d0e5a9a94e494c8b6d1b97ae7. 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/ITC471100441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec4b85f593ecbe0cbe70d2ff8f1a228e757d851346f4200d0e7bb8708015d7e. 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/ITC471100443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebe000617198a6e88ab728961dd23905717ced375886a05839db36fdeb937d4. 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/ITC471100446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f03dac1b9c99fdf8bbb2ba99dbcc2786a6379750ba2be1a6389a6b3dde8b897. 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/ITC471100450.
Ae Mamá Si E' / Candelo (Palos o Atabales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd7a7ff2450e61a65120eb4d525e43bd95f8f5cf1ead24465ddec33d1ab57bc. 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/ITC471100451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ec2f5260e6ccc1355028373900167105a80d401ec156026802d4c26f126893. 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/ITC471100453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1b225138090f862cd2e4aa74abdd2ea9aabd61dec2c371363d14d33b890ab4. 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/ES7739905189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc78f22bff4ee479011d2f6d53c2e41140f2f771cdfaca9a8cbe7cd6da1e1a1. 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/ES7739905185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfe7bdf2c47fa74fbb7d3215168ebdd930cf1db40a1e62f533984f0d2e1d825. 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/ES7739905188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13bbc339725c28b204964a5cf3a3740fdbbaa5276ddaceebfe55ab6cfe793381. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ES7739905201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df6ae50a4037e4a36cdd2d4889fbf59eac6d71de55e663aaab48a1828d5bab5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/ES7739905194.