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 0x87b89b0562d7913c59ccc4c93e965b7a0050f9716a98c03246ca35b009a67574. 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/fc320e0c-6d68-4a83-94a3-cb5de5368248.json and https://artists.proofprofile.net/proofs/artist/fc320e0c-6d68-4a83-94a3-cb5de5368248.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 0xbbf3f249c9425b7ace58d27dc5cb43c67ea6f84b619b117889383fd6855caba4. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZNWR2244173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0ee7e6e9282970451772e4d5d9d380c8a4ac979c59e4c83466d88de21ed577. 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/QZNWS2216443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb751dc90960632d92f4311c0d615e2f4c2d0e12b8a2dd95ca6780349afc4fce1. 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/QZNWT2216613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7846763bf9245f6d0505829b162f2280e03ba3931d135be1cb0185d2a2bd35. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNWZ2257923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee70517d08e9b749f5ea34c63dc44ebfcf3bb89cdd19993928d3d22cbb9fef0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:10:14Z), 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/QZNWX2224738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84651f34672da5112f046f9ba03e2239a7153453b021f3170a6e16b3d70b2df. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZTAX2275649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ddd83b34c22a7643011093f3664dedcbf7f1e64ec5f4dbb634eb8d348e75e3. 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/QZTAX2275653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ef8c0348df6b656a3750ad002ea97452758020cf9be6c0ab5af61bf469a6a6. 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/QZTAX2273402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ac8e39d93f1288f4df3be46a3b2e02f4bd01725d8e199b8e03beb246bec39a. 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/QZTBA2207192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870e739d48ce26c2a0e4fad148d5e0d6f669cce1ea06c34ae1640bcbb9f2ec4e. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:53:39Z), 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/QZFZ72354448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd343779aa043de0cb61bd21366633b3cdd650a47389347564e22e18d5ef6bb. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZNJY2321751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad622630154a339ccef92226fd5f34ea4fc873878208bb6a554224a89cd46988. 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/QZTVM2363909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb7a7fbf23fe4949a4b2c28d8f144e16444e56218b2dd2dd6cc45fcba58faa5. 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/QZTVM2387236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a640ab7ad25a469478daaad173997b5013c6e4a1af40f3aecbe8c4bcf60b81. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:21:52Z), 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/US7VG2409932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b88eabb2e37aa37b0aed132911e1be7ec7416062c2dfba87d143daeb273617. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/US7VG2409928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13068abe27fa09473d0bc8951edf35128fceb4ebc3839a837c67d26265997d2c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US7VG2459022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a25cedc4b01fa0e7d21ca7a37687c4af14fdd4a3ef1439db373c8c52b40b6f9. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:21:03Z), 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/US7VG2485399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dafa6aa4cc35c97f536d76116c84c438aeda17ed1c75dad7838ec646b8de04. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ5AB2481410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bcd0afb0f4448a58654b1f11ff99ad973c296b7cdbdac93e77954c02bf97e6. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:00:31Z), 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/QZ5AB2481416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781b67e9f1125cdf8d9eb14cf21aa60d08348060f50977730ee16c6b40cf228e. 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/QZGLM2499108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd306a2a14757a1dcf1e756be769d1f232e3fee936600f58720832df4123f986e. 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/QZNJW2484477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ba797c2f3c06ad132a11bcb8d90d50de49b54787f2019b02ac66861af52b18. 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/QZNJX2498348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4564f53f2734a1f231f209d29387ffbfceac5cd374936284ccdb33a0cea75c. 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/QZNJY2415937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9874024e60f9a361305058adebe2a114dfb9057f6529ef1291458b496554425d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:00:15Z), 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/QZNJZ2439312.
Entre Tierra y Mar (La Casa de los Famosos Mexico 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c437b1d76abf75c26097258ec4fa7c2946bc16746dde514b53c1c7fbaf5f82. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QZNJZ2454797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231aca8a7d1dee06af705376095f405d3b352dc15d88d0691809b8ae8af8d30a. 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/QZTVM2418052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08afea8b4e30f0705300666e822ab351594c6ac83f8b4fa965fe1d51bce1ed63. 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/QZTVM2418034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41f79fc3e53ca5c9f74c3b95241f451ce9e6110ec830e5b63d2b75a241bc029. 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/QZW9K2442441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357e2b8d9797b13b12e41396fad696c3758926feb3a49fa1ca1c99368a24d979. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZW9L2414306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda010a77af81f7c93126fca8024dbf217ff42909ac1e64c7d48c7d86260131b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZW9L2427856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1eb2410edd0f9764a8d98709db75943c63d8137b075406544816c6b617d0711. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZW9L2445796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03797fb6b0cd60ad44c2c446124222eb1676c8b3301c6d6769b28f8224b135ff. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:50:10Z), 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/QZW9M2450227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0e9b05b4944938b6bde3f446e5d79f3509bc5c29207dd4f9fdab03a4b4e214. 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/US7VG2512405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb4313cf86b06e931dbff7b850a6a4bd0bf37628fc074fe20bcc831946d94d7. 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/US7VG2595834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281bdf1f4a7647c08bc5315ebfc92dc1278a7a133aebb696224998eb4ad67a3e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNJW2519759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89b9b1c728991c864e518c00b9fcbcefed072d1ed91fa2ac865cd1b11628114. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNJW2575436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd09a6f5b798aa54caf0dd99476cf32be660db080c3b7530766f12579f464d8f. 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/QZNJX2509078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd11e036f5941184c341cd2d210632052d87737d43e3466d61f5309597ddb0b2. 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/QZNJX2574153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bf772a3e2eb92468d40f877a8a942bf4348f58ce77491cc8d72149330f0e68. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:01:31Z), 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/QZNJY2588746.