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 0x5ccf1f998c2fc11a81d2b2fc38b6ad601c37ff68041c5ce5b428bdef32a8e3be. 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/7286eb4c-95d1-4939-b928-13b499c99cec.json and https://artists.proofprofile.net/proofs/artist/7286eb4c-95d1-4939-b928-13b499c99cec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Simplemente Thanya La Estrella de la Canción Vol. 1
La Estrella de La Canción / Siempre Tuya Vol. 2
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 0x66d8e2809239d91228ad2a8ee58c49acb9a9b966d7f7d85064adda5b7be9c040. 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/QZN882244714.
La Estrella de la Canción Allá en el Cielo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3429a5e357e54c3fd5f861bfd9ccf571c2045319ead6603207bc382b7b32a209. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:17:51Z), 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/QZN882245133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4898afb46a5e5d7666c312b9e3df6986df745e898673bc6d346281fd3661d01. 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/QM3DF2179772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25eae1b9bcab8212ffa95801ea6f2f5caa921a19f33a8f868c2c8e13652e632. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZN882245137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cdebb31a2d357d8883766d97a7b2b02fc1a1af2b217c4f2425e41dcd525ebc. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:55:51Z), 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/QZQAY2268680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba39f1ba50d9eac7e32f128bd9247d6880cf6996badd111f7844d32d996a752. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZQAY2220322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8975d53a1a99b2ad1b0aaf5df4d2dc0e61abb5f7e9864f170864f36ead8eaaf. 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/QZQAY2201943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53a8f5399ae4868f6ebd6619fb308e80b4aee4832882135e082903b51dd625d. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:10:59Z), 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/QM3DF2180253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef1f122f3b6eb8da75433b59390580d798d6ba975ec63a1eea5e016988fa8f7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:07:02Z), 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/QM3DF2180255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53826a0d5aefae89799562117e02133716b057a34219edf885bd7dd314bc1ec. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:37:30Z), 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/QM3DF2180256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc792f40bc6301b076143d14bc9beaa33a05cc7d389bf22ba8db46cd38dc87f75. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZQAY2232312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ce866c3a0cd6e8b771712cecddf39b20e3d1cc3d60e4138ebd662ae5399395. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZQAY2220461.
La Estrella De La Canción Allá En El Cielo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017881a21541d10d0a52b7861605002345559d68ec8e3e65d7d161c87a698f2d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZQAY2262275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d28d5909ce9a685fb5e2265f5b488b65d558d8ddd883978a0215623c5343f5e. 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/QZQAY2214210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94074ceb095061a4137c8f44e7ae18db9866734e0adb30c53ec6dcaeb574d22. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:56:42Z), 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/QZQAY2228222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc792f40bc6301b076143d14bc9beaa33a05cc7d389bf22ba8db46cd38dc87f75. 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/QZQAY2232312.