thumb|upright 1.25|Wild horses stampeding A stampede () is a situation in which a group of large animals start suddenly running in the same direction, mainly because they are excited or frightened. A
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 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 0x9f2c7dfb0eb5ab28d664a9cf624e96e14ba57bfc5ea20750d89d54a07b9749a0. 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/27b4de1b-f8ba-4e35-88d9-34c0835331a9.json and https://artists.proofprofile.net/proofs/artist/27b4de1b-f8ba-4e35-88d9-34c0835331a9.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 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 0x8dd7bf4dd77281874afba9ce191be00c2f1ac87254d20261933e9f8eee5fbfde. 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/QMBZ91562381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a74a76371e0443f18bc00bc9af08d0a8d606beba329bce1357f678ef77df20. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMBZ91562382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f1e71dc6103b1410bf721f3d145df79270660a44b2d0b880827903afb304ea. 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/QMBZ91562384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f1c0984bbf8ad806850f3484172a8e17693b64e1ef804ad516ce0e929e24bb. 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/QMBZ91562385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb66406735ed9bc3b531f46d398f9bdf4350edd320cdab9a4e0db49082b21ab. 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/QMBZ91562386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9c10e6e03df1b6d1701ebb0a599ec71b8478e4f1496d89ad1a1f1caf43459d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QMBZ91562387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e84f36a0b92352a48276193e555cdf987bda9572a02baf854da48c71f1f04d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QMBZ91562388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef1bb8564321009de9111bf60934f13c7d29ddd168ebe8e673df90ed3293a6a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMBZ91562390.
Canciones a Mi Madre: Ni por Mil Punados de Oro / Madresita Querida / Por el Amor de Mi Madre / Con la Tinta de Mi Sangre / El Retrato de Mi Madre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd76fbb4e2dfef45b09c4aae4200455573cd26b2585c24c50ebeda6e2fd963d. 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/QMBZ91562391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d567610f2377d2b6bbdc141897c198981fb7d4a6053ebd79f6ac714c8db2d7. 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/QM6MZ2485144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a19c5b21e5dc547ec0979dbfe0b09ff6964fbc0a0b9ee8c9ea05a752db7e369. 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/TCABJ1285897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c7edebf37ed5d34cbb7be10282ba7174bb38ff3e368ce28e88115842dc3e95. 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/TCABJ1285899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac18334353c38b8469c5fcb681e15dab853203889e299f1dabd7044d1dbc039. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCABJ1285900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05df147c6fa00c8837f40f4eb957fc15823e6a4f4f5b6087ddfc9f114c6d1366. 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/TCABJ1285901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba71bab5dc874d9c5fcb54d115742e8d7c173ea25ed9bb06f412185327cc1e8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCABJ1285904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490e031f2406ffb6d8a7fbe4327de7a734fa0e347405655395f6f6eec394b329. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCABJ1285907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e157ceb60ec2a07812eee8aa9019daca2790d91875197dd658ba77dfba01a4e. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/TCABJ1285910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306d554115f143d8a0eafe365d20e5cea1cd7d6848bfe80ddaf4610be7747756. 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/TCABJ1285913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe338855ed5a30b2ddbbfebd1a18c1cde2010f31cd99fa89f75ed2f3726e8f88e. 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/TCABJ1285914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf088e34738bbca086941ff25fa4b092c75f50863dd12efbd456b59836a2a8035. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCABJ1285916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8929b804a32d3686e47f0995fd53ae23badec39a3b26eda09e3a1ed599e7756. 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/TCABJ1285918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30a61f90c8003c075b58d4287e1eff67f64ec03bc68c57a06c0bb9712b479b1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/TCABJ1285920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d979a6b08439937cfcac5036a63fdd4407f071a54abb0e88a2729f56ee67fe. 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/TCABJ1285922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381047e0bc90c43af54881a4dd7d7e1a6a1ba024ff3613bd2b1e2aa6bdc28981. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCABJ1285925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd2928aeae1c396209898c07ec28f8c2e744bb3c10d55f3de2489e983afd5f1. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/TCABJ1285928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f205ee5341b52fc786adc40e5f50f6705cc0847225a0ef2566363dca88b1058. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/TCABJ1285929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e13966c68a7afcaebd075dd846ffb7d26e4b1faca21b1af1b4c56a255b857c2. 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/TCABJ1285931.