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 0x14aadaafdb1e5566045f9f1442e1e03c4cf77bcfc536e7033dbf24669fcd285f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85b49247-854c-4865-8bb0-0ba7c74a34f9.json and https://artists.proofprofile.net/proofs/artist/85b49247-854c-4865-8bb0-0ba7c74a34f9.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 0xdae77d9da6fe96af9f9d6d0c7984c27e756be8bafc0c691f5185623c64a1354f. 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/QZGLS2261620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc895a58e69c2756907e008069cd4c7a26407bc79121acf2378bd4c9936a23ec4. 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/QZGLS2261621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42eec3b6621c557bd9b706d2a7f86c14fc67788c08fd7ab7b5c5e6c582d46813. 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/QZGLS2261622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c379111a0961e0bff8211ba042b5ada1fd5b6118799223fe3a3d0b910b1980e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:00:25Z), 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/BXZYA2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f56cd66f869c3289ddaa69855e032420ff51be1fd2e8733f116018fb6471db3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXZYA2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb296889e1f92b85b467317d60529ffe95a2e001cbd3267f8ddbd6f3a301fa9. 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/QZWDE2313569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a7e85e62fc1d566275b78606f1cf0ee2378924ea396f4498eece2dcec665cb. 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/QZZEC2302257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5757ba25e473c0e9b0d3237ef73ef37b64e7194f70662693c52f1a3a33588e. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:06:36Z), 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/GBRKQ2453242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e590cca64013a52dad2d7092efe52f25db4ede716522fb6d646c524f1715488. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/GBRKQ2453244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e460d459c88607205d7797ba1dff0fb473d43826c989c415d317cd544f466c6. 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/GBRKQ2453247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c00afe8b40d4571b94a5fd26f36d5cd763f54018a2e102c469f69468fb62a20. 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/GBRKQ2453249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22c95ab16c68c64a3e5d439d98be34b9e58041fa4deb34d64ca2dea6b7b6027. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBRKQ2453700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0b952280e101823a878325242327a9dbdf3baf114eda2ea2659af4b2b99573. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/GBRKQ2453610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb1283d2045d1b4486ec4b35d7171e1ad9e2a70b83eafef3502eeb7dfc78f68. 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/GBRKQ2453623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d0e201bfbcb882fddbecee889ace6af204faa47f87f0d23721c0053fd56044. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GBRKQ2453681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7c3663c0a549ef45c73167130a633916a5fc1566756458b339e04ac2a1bdf4. 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/GBRKQ2453686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0159c0ec122afa509919b31e9f949fe3a19dd2cec92462a87949b00c23d03e4. 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/QZZ8B2439480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086d31b3d3d773e8798c2bfaa06ec3667bf1f8d551d89b0f058bab37adb80426. 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/QZZ8B2439484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cc2b115c8089683a6e0d2c8568060da6f490afed5245d3a4d7a8caf73895e5. 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/QZZ8B2439616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d85ad0f298b876c5e87d4d4225eb9b63e31df082671bfd725e239cc2944ec68. 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/QZZ8B2439620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e7ad4410a389c5378133f53aa95217d4c19ddaf441ab577151cde6609941ab. 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/QZZ8B2439644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ffab34572f771daf8aec612d7f4f98fca44df8f0c579f791cdbc9dc5195c0b. 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/QZZ8B2439663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd854c357635eabbc95bc3dffc2408fb1db83d161939e0d2aa656503f4a49839a. 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/QZZ8B2439679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4604c2349208ffb427817e59ebddeb170a07f4186cac2247045d8f321b64a0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZZ8B2439683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd983967651bc59439e07f348021bd1004a2eb0578f0f804079a7ee83019bf7. 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/QZZ8B2439686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4267601ff3ed4c4042810f775a2f1c2fc2824cf0037d7404ca37c1901d4b945b. 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/QZZ8B2439696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64e7ac3bdaead97833c822e404e7f0ae33a34f808d769e3d74e213f066c68d5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZZ8B2439717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47da9a919ac0a5308e2358075c6b0aa75a9417a09e50db25a6a29cbb4bcbf89c. 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/QZZ8B2439723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4ee6be99f61ff56107ab4efe32a613926bcab4eed3056c1f766485f6915c3e. 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/QZZ8B2439768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6d1f8206f483316bedc9266070a2f3560ec30387b10074a0a313e1a32a20e9. 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/QZZ8B2439774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f100f77333e2ac2b3fa3ecaa331ff958be868dd52990b7f13cac8d758f0a70. 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/QZZ8B2439783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f03d5420dafac4da6d648c16b508feebdffc4b41fba1b7c71719d6ec5e01b22. 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/QZZ8B2439837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0153d7d3dd5ee99b493c098f4fe6eb3536c621daa48f57e4291f35e281e07799. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZZ8B2439843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2d1056902ef188a992767b63bb7953a09b6c2749bf3dc9fa280c9604ddb990. 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/QZZ8B2439846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea673b1c961460f300ed4ee58b17f98c31e017f649c73ad6d67bd084c58be8a. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZZ8A2530396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f080815771e4770b9004b2367ff9f1bd6d186e4f0a186e783202f0e6d4063a. 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/SE6QE2334832.
Os Piratas do Haxixe: Barril de Goblins (Merla Extra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e1d7df7ad97c820bb9bc34ac94b99719af81487a1ea6c8b6ad1439b896d6ae. 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/BXZYA2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0d8875d9b282676d2877e176f253d2921eee0521216aeef4c203a12e67e507. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZZ8A2371286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d91c3c23f666ff488c77f6432f1f4e6948312ad94f4307f62d39bc44b37f7e. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZFZ42058780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d81ccf06154a52b7e113a54348785a4372786d84c5b30a88af1f3252f90ad6. 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/BXZYA2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9279ff9f3d4b276ea3e4c5a9441b115b0b7f00b39acb569ff00104951de36fdc. 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/QZWDE2206692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e940b72720787e03f01180dd06ae7b781b17035630587a460ee9e9443459bbd. 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/QZZ8B2345654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb01424c61751c3d3dab6677a40d6c9abcb0475c1e47ba52207cb028028ff70. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTPX2253413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde29a63e42818519b991466112f9d7ded852f779af38f02b90eb31a629be4da3. 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/QZW9L2292866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210d60a4acede7c5955d2b8eac5a273cee27b678c28ea48f4629f4f526cdc537. 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/QZZEB2340207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28fe30cb114ee8fe3475141cd2b373583a7f085c3d836538a9a16f5b794b2d3. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QM42K2261525.
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 0xdfa41876002daa4904ead9d395559b19eb42a83e9f91533a170bb2b71d843ad0. 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/QZZ8B2345655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc71562aaa32c2011987f1a9cabb7a17419c3426a3248a4bb3cd39c7223592a6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZW9L2371741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea35d24f547b69c10eb9c0845ec8966140103867a1967d0dbc138ff5be862cf. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZGLM2443103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e88ad5b5d220aa17d922141260d98157e686ca5b4c0d68ae1c89831b7727be. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZMZ92169573.