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 0x4ed516aaf198a861071deec16cf48f250af511e37f8bcf16af4614207d3f529c. 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/1394ec93-8607-4652-b37f-0d161c60e2b9.json and https://artists.proofprofile.net/proofs/artist/1394ec93-8607-4652-b37f-0d161c60e2b9.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 0xb01d2dba93869eb8a2bab80f69bbbec3ba05f88abf73ec713779b7477a0976d7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCABS1312104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c996b38846070aad8b4d18a1f853317528e7327fba4318beae194405ceb659. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/TCABS1312105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa921aaec111ac9107481f8e79bc7f9668f11fc0242108dffedd6991e1a0b63ee. 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/TCABS1312106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e1e2af8617d902692153772cbf714c6546cddf240358ef0d94d163835adbe5. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:42:24Z), 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/TCABS1312107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242be9bf6d295fc54bbb7b6fc225208ef24043e70274443ecaed015208d4a283. 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/TCABS1312109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a0b07aca39a486cb306597aaab7afcec618cb91e0f3919daa75eb70060dd1d. 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/TCABS1312416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf00ad7a3e9374ca5c9c4a0871c5bd52c49e600d870bb93deff29894458ae91. 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/TCABS1312483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629df9a6faf4791e2d7849aeb946be154c4dfda6c64b0e712e6677d41a38ac1e. 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/TCABS1312484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f06ca353bfa2edc8c5476a10ab2acf4f00487fa4a1022e07585d75fb05f160. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCABS1312493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230956f484116682d906de6586df2cbf27081014d22b22ebc7b4b12dc8a819aa. 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/TCABS1312495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028b0c82836f321b697b834fb485832d3ec14d67e015ff1a008a8896e78b4fe4. 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/TCACD1520043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f395eb3a82438a12de23ed9cb3070162d4b236942b71dc9ff4fead79c23ba3. 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/TCACW1607988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff229d206ad21b07c5bb03b09935a523991c345e39fa5ce57e7582d8fd7372b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCACW1607989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00132992ec189107142b36ee6928dd7811b89f51470a24315dc94f79f2515634. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCACW1608005.
Dice Que Se Va el Próximo Mes - Remasterizada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabe8284e7d48d2102bb99eac64b3efea807745556787f2354ba5a0ed9d4512b. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/SE5BU1791814.
Clausura Gira en Kasas 2021 en Cuarteto de Cuerdas (En Vivo en Kasa 881) [Vol. 1]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42345d49544deaf4a98b851e3db5b102b5974c533695da61535d462f2e5e2295. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:12:27Z), 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/QZW9K2332275.
Cada Martes (Soundtrack: Un Tributo a División Minúscula)
Cada Martes - Soundtrack: Un Tributo a División Minúscula
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dce7b10ec787bf00baab23620eb1fd303e95e9f5b06059d79d6e4dd735231a6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMBZ92404856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa899ca7937fe01c20c0517e8cd58379480cbd8518635893d69ae2370ccf7620f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTPX2493540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020d993331dc0e550739f9f9c71185873ff32336a52874fe97cfa0dc3d6fe9f4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GXF9Q2578269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb7e6e358bf61bf6a6664c4a46a8356b8e6373f1dcdba821a2c666e753cb26a. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/GBLFP2563604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9e0b229c135e9245b85037e39a554e1acd2d9e5d3861ed3e4d946b8199a497. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/UKXN22535615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb7e6e358bf61bf6a6664c4a46a8356b8e6373f1dcdba821a2c666e753cb26a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBLFP2563604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c64398e82ad6ba641b1359252617e626922b03ab4428828222d6979e23deea3. 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/GX3Q92586908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020d993331dc0e550739f9f9c71185873ff32336a52874fe97cfa0dc3d6fe9f4. 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/GXF9Q2578269.
Soundtrack: Un Tributo a División Minúscula (Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dce7b10ec787bf00baab23620eb1fd303e95e9f5b06059d79d6e4dd735231a6. 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/QMBZ92404856.
Y Si un Día Explota el Planeta Quiero Tenerte Cerca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee7197afe3646ea59bec3af6eb9926034497cdae98c2f512d7113d9c7a9bb0f. 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/QZNJW2309264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8228d4708d9a847c4a57c6ca3ca9c4ddd8e86513bb40c8a60eb8ad49b7d79484. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/ES23A2016001.
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