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 0x3610ebd38cc6d34d88740b51a19ff0cec3a7c1fd79a48d5095bc62a10d8fce6b. 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/ff03a5d7-b00e-4e27-b7b0-e65f40b9f2c3.json and https://artists.proofprofile.net/proofs/artist/ff03a5d7-b00e-4e27-b7b0-e65f40b9f2c3.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 0xa8b3da130edab790af88322193ffa05fd90c720d1358fdcfc2ada9714b0a1c42. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:14:20Z), 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/ESA112322520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3002f8f1edfc58179c28397e6a4e3b90ed03d66162d53452b14f09fdaee631. 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/ESA112430142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe566dd2e5b1641561280cfddf263f323e6547f1f760f511ac12d365f329e058b. 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/ESA112432199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b68610c25eb9617b5d9e505cabbae0c20c5e5a3a863a71d513efb6a03471de0. 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/QZWDW2441392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2504f35b94d528fbf8be0d995a3206782fd8fd08e4da9ad4f0d40e93984d1fd7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWDW2441394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74d3be4e158e768bb442409ee02cb40c23198aba70a63d0b118a0018afacfd2. 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/QZWDW2441393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42f8c84288fda28e13d1d9875c8cb9189425f2f7d9c3d127515fe684740b8fc. 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/QZWDW2472726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42f8c84288fda28e13d1d9875c8cb9189425f2f7d9c3d127515fe684740b8fc. 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/QZWDW2472726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe986e39ac8b7921a76d84a661000b2eca9e180e5348d36ab39613b7a81b763c3. 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/QZWDW2489279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5eff46af20c440d406cb4ed18d5f898349ae489093a1ec1210725880b06d81. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZN882413924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0831edf1f72d094d620a8212e8068c0e0cd1daa8fa5089f742ec87bb54d58eb8. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:33:34Z), 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/QZN882445145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977d15db1dca3cb6a541ae32aea3019b52b7ef531d064bfc162a89c7de44df82. 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/QZN882531979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82901d8a9648283bed97e0ce4714bbb198838b2400f560d544b5d1d2ff3a2c95. 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/QZN882531980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa330d99221b4cbfa098c47ecca28563bf1e94da522e0606a42c688a3f6c20be3. 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/QZWDW2581536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99beb7c2a22e13bc5b9a5b2d328dbe9c6e43edb06ccf3e33096b4470cc90e24. 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/QZN882551579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa249a6d899772abe8925912f547c5045f298671e95844c49ec756565d0626c2. 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/QZN882551580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc16a6a6165c94e166b0e7a8b691b9fa09e0272baabf8d9f181a27a83841b6931. 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/QZN882551581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c1bf13e64934c1bbed782796970d78ca2928a5bd0b835430b2e45e99b7a566. 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/QZWDW2476490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128fd6165825fce8d4adb036dd834d5322c3cc8595ef3b6d80cfe0e92b4ee123. 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/QZYFZ2466815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f624bd843374ee47bd2d855d3e5bc9e68f8338c8b016f2183fe381b0c166ff6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ESA112437374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bbae3ff7da5a3fbb44e038bf0d1fc4b3dc5ac3cf86a9a9a61c4aa7f89675b3. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ESA112437377.
Puta de Silicone (feat. MC Lucks & Vinnyrd7)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aed70f0c2ba79ef2aefef94e449df1bb34226bab314b670649b971508743c99. 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/ESA112427835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ec03bf122c6e32e4ed9ef8eadaabb021307a1f3392cae1bcc79bdc3d4f9058. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/ESA112437375.
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 0xda13504b173d319e22dfca011e83d59f91ccbd6efc129850a0f8c800c1030095. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ESA112437376.