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 0x8d1836f254fd58c292901228e75a47347c9954bbad7fdd36477f7cf3b70efc61. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f570c9bd-1472-498c-99c1-bebc475943d0.json and https://artists.proofprofile.net/proofs/artist/f570c9bd-1472-498c-99c1-bebc475943d0.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 0x77643f6d03cb723dd67a88001bcbb9bb1ace41248a513e54c6095be1e508793b. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZ4JJ1612103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959cd2455fd57f3dd3ae694f20190f6b4644618bc27790ff6636ce60246cc4b5. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:06:08Z), 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/ES6081741801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1d6ab22dd1baaae95919830e22836404d57c0f8794da303276c2325a4aafbc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:35Z), 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/ES6081741802.
Feliz Con Poco, Aunque Quiera Más (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e545a4d0c8f09404f5c9d3161479e02fb4afc6fac18152661603f6d1633fb98. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/ES5152000826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fd6d9ae62dd62888a02e385667e37739626d317b68164cfb62787005e3f3a0. 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/ZZOPM2108727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486303974abd0e158070b7b078c006b7b9494fb716c839f2cd3920d53538ed86. 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/TCAFS2159218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d08f924ecfb44b07e4994fcae449c46d60d590820ade93e15810afc5e18c7d7. 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/ZZOPM2106264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7ba766f41524549b2e5e27d80abf89ed6ebb4bbe98e1a2937f91eadbb7abcf. 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/ZZOPM2118873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4c78a5f22aa9fc1c3f6ae8c46d36b80f5c27c304aab800a5df702c57d51028. 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/ZZOPM2105430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a6950e6e2991a134f042e5862ee70a9ca0ef97f2cec01f0733b7d8145c9b24. 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/ZZOPM2118874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46917c346f2e1fc1e6eb32ea1d8901bacc0e2a23b02414f4582b135d9d6e5512. 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/ES71G2027219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7fd6d9ae62dd62888a02e385667e37739626d317b68164cfb62787005e3f3a0. 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/ZZOPM2108727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4933ca2a5f5bc2d6a9ca2b637f2277b86a74f47509efea24418bfc1c1a7e54f. 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/ZZOPM2118875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6838ffef9cf6032fd95ede9a94750c71c7e5d2f5c009af49900788112249f66. 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/ZZOPM2106265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed7ee29907353b9ceeaaf94c6ec8a4a39a5e54e4d09bf7778cebac61c3023f5. 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/ZZOPM2106803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138a36335d6df7a5b577bc9cac929a2cb475d6e64956001b8228a9d8254b4461. 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/ZZOPM2118879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa08f2923dbb71c3a497faae4c9ed7358d227c0d1901b4f05f3af59355c570e. 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/ZZOPM2118876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304750a5e6ae596de5066cac97440fbc0ee46f4d45c7716bf4b52e9ef774ba88. 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/ZZOPM2118877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1edce429aabee6f0f13e6eeacf0806e25738240d31d55a6012f563d0ec6e782. 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/ZZOPM2118878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd44462f3435f2184b8f26041dfe7f837bfce5f9454218a72efefd644e7c32a. 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/ZZOPM2114953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3d1f5c4b86d51ed7eb892e9f20500b023353d49c27e4ad7269277adaa1e58f. 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/ZZOPM2106749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eaf81b16f429f064753d995cc1c4732cb72072c69674fc7748f1a1cdc53581. 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/ZZOPM2117466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af94afd6408b8ec3731b172798d728ae52d1194370b35f294af33f8dad77c7e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/BK4DA2207343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c46d233050e40bb4014d70e50088582ba00f6ccc554629274699e4df8b05bc7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/BK4DA2300917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7696fd9ccfef62640253a987753ae4464ea25589b150400d3e94be2de07e7609. 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/BK4DA2306991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9360fb27281e84f59f70341278bc8c89b9d5334ea4604e44704360e487fee5b2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BK4DA2308278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efdd7af382fdfa8b51d0c1f4f54930a119419a76c2a47ecc49003cc39e3d66a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CAHQJ1909401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efdd7af382fdfa8b51d0c1f4f54930a119419a76c2a47ecc49003cc39e3d66a. 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/CAHQJ1909401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c1c3c2633d3dafafcec64847d7e354f2594b4c5ae0864337a05318f1f97795. 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/CACWV1983669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea9c285891c537190ba9e445f6ab93025ec69c955e896f6c6d8830fe690ec86. 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/ES5021900105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea9c285891c537190ba9e445f6ab93025ec69c955e896f6c6d8830fe690ec86. 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/ES5021900105.
Al Mirar (Mayo, Oddliquor & Tuiste Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3202cb71c9760891fae6cadc5295ce909da7241ea28beda1aba52cd6179b9cfe. 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/ES71G2237104.