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 0x37cd624717cb0b69da683f569dae786a842fba52196a1e72bce5e764b559d3cc. 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/7179fe6a-104d-4878-be7d-2c29c869f84c.json and https://artists.proofprofile.net/proofs/artist/7179fe6a-104d-4878-be7d-2c29c869f84c.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 0x30929098b01a5f1772a23342985c88384e499b556b40962430e9207fede4fe05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ESUM72302421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32dca49eec82bdbb9f6f27fe5451e23adb78ea413fb8243eff574438111ad563. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6P42203578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e695c50f944e1df7ea70d417b2197396c8161314e6029df2691537cc49cd9b3. 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/BK4DA2456825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160e5f67aeadfced7ec0616e8a2bb867577b530811b58b8af06b1e65dd89722d. 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/ES5152201621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fb2f4f0365d86bb592d7906ea9a83d00b5c83aebcb48b07227a2d50145484f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2203745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd18feac496bb4ff07b1256421e3ebf8cc06eef8bd8ce601c9c93106bc623efc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZMZ92565296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f864d333928c0669e1460b73f64d5cb896005e740c54555b587092547708624. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6MZ2590140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f85685299abd0e98298fbf8e53a838f9c10b150ef84251defeb417e6d12e34. 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/ES64E2498381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacad885ca1df87b9852fe257c0e126e5d8d5bd10807f7345e4a42633183405c6. 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/ES64E2489107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ddb7e26ae7cafae3a00e64370b073342d90c174948fe0e9bde1f41a6bd8dad. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES64E2487123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cb4a4571a870ac1ad034f6b75834bf6b6dd7d9b6e0fbd71ab7df42a94e276e. 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/ES64E2484827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b55eaaccc4c1aecd2f816b13f3589c9ebcc61d159e2436606880c139cd905cb. 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/ES64E2479654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf153a9d2c72141f70895f8f0903543f5fe6cc729385cb814fc364aea0a8a968. 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/ES64E2466794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51be4fd7f6a58d19d35c44501cea253594f457182e806724c4deddb28d85dcf4. 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/QZW9K2392885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22f37fe9900338279d736812314768fff5740895d2c4db8bba1ed01832bf67f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTPX2386452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd99f7622880ad4dcaa13b58bcf2f19dc5bbbaf8e2fef3b92806eaedf84a672. 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/QZNJX2308978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1290d6eb925a67c3f39ed1adec4570eab02ae56e069174353033bc832d5d253. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNJV2305109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c70cec0ab6b89308329f3750748116c60d979ff40145c3f15a67df8f7594e9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES5152300226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187fd8092da1b4bb041e83f9b6c897b15115d1b1334ae5e5cf5a5bca4d1a1176. 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/QZGLM2383849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f1face56c4206c4419f4c8e27a791bd37b8689caba6e517486df13cd5c9f4c. 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/ES64E2301904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09508ef0eb8290a97721104529033e3b298864c62f338fefee2ace35ade7f31. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZW9L2217275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177930137be1d2d3866472499876acc6b6f1615ffd13acca1dc60244620354ba. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6N22249440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf5d5c296e1c7090ad26c6b52aa9c84a157a05ecd1436c0a12590a1e249f263. 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/QM4TW2287985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7aa7c2b1e49512ef59ff5830cf7210fa3447869df04e02af75e942bad945999. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA72155995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cb2bfa5d255f752e82353b9543c1b20627a0374eb3ba67245d2a1c0acabd61. 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/ES6672104656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57177dbe6a0082b84568cf306d8309e6e76c3f318a5195440ffac0b78ffb42d9. 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/ES6672104610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaedac0a94923d135291f9a62d77cd2f0beac63667621272fda1aa8e6058a449. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES6672104545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ca4a82db8335c085a01863d648fb5189ec2e51912cda3fea850dc5b29d6018. 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/ES6672104373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b48ddbcdca85f339a67d9d887a71418bf4d4c8169247d6062e6193bf07bbfc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES6672004010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9732967e6befbc2ed4e599b1743c7ca9d8f2b6c702eb19d613e4e50f835c50bb. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ES6672004007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81482a8ebba36269c2799124c9a7b4b4a20a076a68270a9ce4d9afd5ec9c2a11. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:51:41Z), 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/QM7282060464.
Cicatrices (feat. Indara) [Bachata Version By DJ Khalid]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68491b297f7a6526103c3c811cf9b79da657096f4709c91e8a9cf91573496a47. 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/ES5152000863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27733224130256a4a5d55f808f2c1ecae6be0be02739802c5197505bfdcd1fa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES6672003693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8acd8ecb9801469c0c4e15897346e31586e0bb2919f3a62b2d911d5efff807. 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/ES6672003639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d95cb5d294a21249ba773cfd82d1b5ae46d6bc874163c05790694fc277264f. 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/ES6672003623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d73a4c733983e7e5d31f331b590453867fc37fbd0762711a2288325723acf8. 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/ES6672003617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d94e5e4974eca65ee3111f5719e42a9c37569c1a090f82c04f0caf51f83f589. 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/QMFMF1903764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe058d00cd43c0d45e1281c5b3fe6b87308bae7f17aedc1895469134b34bafd6a. 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/ES6671903596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9e8110683baf3007959a82747f2ab6fd0974d8ca0deada8c680f88dcac4e02. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES5151900559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160e5f67aeadfced7ec0616e8a2bb867577b530811b58b8af06b1e65dd89722d. 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/ES5152201621.