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 0x516f1d7ae51fc0e8f93806ee0e4caaa32b3310df2655345ae53c15a42cfdbbc9. 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/21b2bfa8-da5c-4b32-a1d1-ca70b12c8db9.json and https://artists.proofprofile.net/proofs/artist/21b2bfa8-da5c-4b32-a1d1-ca70b12c8db9.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 0x33ae93b286f4031df553b25f27a352451c4277fbb5e8d4e4e1c8a2a0b4a18e68. 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/QM4TW2380996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aaae704245447674058e4830034ba517e27552c1c7d533c69144707aa412f1. 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/BK4DA2301105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca07e4e751812e36bcad6195d65193f279ccbdb481ea5d35ab1162f6ca9272d. 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/USA2P1956529.
Te Apuesto A Ti (feat. Monrrow) [Original Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5450e5b2dfced3e937ca0f616e5d9fc71ef211fc9d21741cf0192d802df0769. 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/BK4DA2429328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a205294a2a5c33a6abe7d93002026508e727a75e691e9e66abba7d1a74c37a. 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/BK4DA2429329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6851ee928df6c829fa8db60b00fc27f4d8a4ac9051d23030f724966f3d06f3d9. 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/BK4DA2429330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e666b510f66f1a52ad5bb41302d261b2f3964430383f729e6faeb2712b1289a. 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/BK4DA2413322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316d480d18f08e48e2270d8c7e74659b995e610592944d816ed68b6120cf6cbf. 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/BK4DA2413352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a509204885bcd6f0b288ad4e029f373e5b3ceb7543a27341468affe499e728. 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/BK4DA2407463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd278e1372701ce7edfd6cb4beacbf4806e37120907975e9aed2ce05ea44043c. 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/BK4DA2402451.
Toco el Cielo (Official Remix) [feat. Yilberking]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0334125b01698699a6d023ae2c2331332b5ff9108fca7bb3944b63795ad465c4. 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/QZHZ51906121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aaae704245447674058e4830034ba517e27552c1c7d533c69144707aa412f1. 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/BK4DA2301105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bf332dfb9bb0e24a6cb0fb47f948e3afa49b7e3c420bba7f5b78db1da61b15. 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/CLA1D2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94417fbd530dd53c4799f8933af71153cc3bc604bb4b5fab151c760c25f1882. 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/BK4DA2306426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553eb5a5e8b92e54f2dc2f56fa31412a6602728d808387e010f0a964fdd4fdc6. 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/MXF152201064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccc9fcaeb8005839bd2dadfe672d255095af10cbb993154bb9b81c95cc71c65. 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/CLA1D2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d6adc0405bb831d92c0a7e70585d43f8309ea396baf9743327e2984146af13. 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/USDXS2014134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9bdb3203146852cc4b8e30474934404c3376cd3ae1f9ce403d39baab4ee9d2. 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/CA5KR2060582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936a7282b38d302ffae2c83148a2c0befa12aaf8c786c4fda5b4a78121c99c1c. 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/CA5KR2038133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85cb8e7cecbed46b4af1d0dcd983bcdf36943652b9c393e078762b74e858392. 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/ESA012015283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48056158c93e1e8cfa0e2cd3878696df494604067f87f2ff4e88da4ebd258b24. 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/ESA011886105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b5097b9f6c692ad451dcd32b9c302daac302fb9893de5424a4b93ab26db2ad. 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/ESA011886106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570ea5d2beeec44f7207ea2b171a8db1e12661122cb591fe9dbc5a0aeaa74faa. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/ESA012062142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0d5cb41a4edb2f330e85ca8db1209885c67bbe72c7993583aebedd6fc027bb. 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/ESA011886108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e7ce9d8f3b0873f06b55206b308273fc26413955e366d463b77672a01fae74. 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/ESA012045675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848af0adc9e01eb883e149b8b967eb038305814bf662102ba2eda33ee4bd3d5c. 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/ESA011886111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915603b8bf87c6a02735a3d7b3556e87f4f810f1f2d1e79cef2494fc26a80959. 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/ESA011886113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe35b64bb65b32ab0606afba37d098a6dd72ce615caedb432292a7a78c935b9. 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/ESA011886114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c75c12f15267e82fab8f5e18c8db7701a230c5eeb902c11ffa8df0ae582c70. 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/MXF152200317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f3c6762b180fca59736c2240d0f27a3df895a0d48421469fc5db7029690c00. 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/QZNJY2284379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4d1da2a27227a492b725402ca61b2f4d1fc0ee0fddb9b44185ddf88700ca59. 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/USWL11800994.