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 0xd84c133dd6e396787e6ef2ac914dde248f4765e1b2a71f66dd7a381808432d6e. 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/67a2cbf3-f25a-44f3-91e7-de407ca782d2.json and https://artists.proofprofile.net/proofs/artist/67a2cbf3-f25a-44f3-91e7-de407ca782d2.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 0x62339aab37c57053791a0fcb429fd2125f6f910a57a00b0dd9151606b20435ec. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZAPG1768130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa358df73d438edd0c469b5f2d87d4d58eea9cb64a048e9801e5cebfbe3b1f7e8. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:59:25Z), 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/QZAPG1742023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14009419fca441268fcf847eedea4940323bc9965d529e46df5fb951be24cc4. 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/QZBRF1846315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3be9730cfa767d9ff67622a14998e0763002d50434f33dbf6fb055954e145dc. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZBRF1818815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2618b48339724f7414e73b95f2e7df57b3198c757e20ceacdcff2332021e029. 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/ART0G1807638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4095f8e30d106f621f729f95865b2acc1cf8f1176546767cf6ef1425262f06. 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/ART0G1805709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8f29dbea12f682a0b0363cf5dafaa9209c1f1f57e7a1e9f63c31d52855baec. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/ART0G1805711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9244f70136eb4c2f962d8c77f3d410047030384d7d73be485c8f2a9021e8894. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QZDA71881271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba406b6e37caff34327b5413bbf79ac343edea880b56daddbf9e4789d05f8d9f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZES61886851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63174e70085dcc602032cc3904cca35a6f7051c42a01dd770e35a7fea3424df6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA81882058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ab7f810234b996ded36aa20bf51e23858f1b0a4bae400e989d222f5fca1aa7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:25Z), 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/QZARB1813259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678fef8613f73bbaa00c5c5e8cb9fe46df626900231c4736c53e23477e125c13. 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/ART0G2000178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c236f8939328dda0ebdb1bdab9466c01706bcad021704cf87a5148a6e09c003. 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/ART0G2000818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24520b9ae69316e13a2eb0a45c1ab54d307b54c866251e6cf69ee01e3c31cf54. 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/ART0G2001200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215cfc7ef7b2c32c87e3f58ef2b86c869bdbe1447513545c428c640780d223bd. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ART0G2001345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394ec39268a1684769d45b99d42b747bdb01823785518012ae739fa81089abe7. 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/ART0G2003565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b20dbd50a18dff8fe0d5e9c84f981193073474df2cd9fde63289fa2dad1b762. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:05:55Z), 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/ART0G2004004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113624a8de78e70c5173a80cfc542927a257913bba4720a3a9f121f64199f627. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QM2PV1833713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e985afe1ce50e892c3cd364406968481ad8fbca2d5dbdd204d812852a0e8890. 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/ARIXB2100445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cb9de4591cdfb66536371cc7d1864334a729b12951160a7d6ab4979c156ac9. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ARIXB2100676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464993944dd87b651fab32e9b67ea52ef3954f71d61f7cde9070f9fac27b67ec. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ARIXB2101004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0b9ecae64537a20cdd8ae0740268d439adef65ef0de6e0f5badf9197a18fd7. 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/ARIXB2101146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf638da4225e3c620ab21a982f3678c8fba7cf3d5369458c8108d4acd0b7a66de. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/ARIXB2101385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb7698d8a91941c9ff31f500c1bca845917cb1646ae63f6ebbc24fe22564ed5. 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/ARIXB2102195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9453058ae2c027fc59a8a31013066d25629104c124a5cf7de47bb4baa095d65. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:22:56Z), 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/ARIXB2102604.
Eladio: Bzrp Music Session, Vol. 40 (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313952fe368b59306ac187f2550c52a5e92b5ee6c1b6d2693d6bf5351191e569. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:36:01Z), 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/ARIXB2102822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8110d33b8b64f3812236347d7bfe7856ee43f4be47abf453ace27fb5e1a9bda7. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARIXB2104885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9724ee627e3c5741f934e7a5640213c1892f7e36191253e7c0baf2ec4f532d09. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ARIXB2201431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616b3855e74e817e27655f6e1eb1f8dfb6d02831404924c1139ab202d44357fb. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ARIXB2201666.
Paulo: Bzrp Music Session, Vol. 23 (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4da20986626bc3f168b261c799ba3814afc4283d5e453e2d3e5f7889f5f516. 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/ARIXB2204061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7f2c130769665e112e5da9cb3ea3c9981351b92d32169953c8620a820c0ce3. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/ARIXB2204083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0b4618c32ac0f0b4f3a5dc18bbf27a444ab9ce34aff4f889598d305d402ae8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNJZ2228382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67309199512b4fa76feb9f9fa153a0b8512fa81dd105a70971337c25773297e. 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/QZW9K2289596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172c572599a06a1aa114ac147859723994c66826d41701bcefa2e7096caba358. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARIXB2301586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548e142db35150648445bfde10a5e14f495dbb9f0a5a42c3432f9a4c5829f796. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/ARIXB2303589.
BZRP Music Sessions #56 (Cachengue Remix)
Corazon Vacio vs Ay Vamos (Mashup) [Remix]
Corazon Vacio Vs Ay Vamos (Mashup) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321fcabcb90b48aa5558b2be32e3143c9f349478cf34455d159665c900b42456. 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/ARIXB2308324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cba776b7f81e484f2c0b99a3e8e481bcb61427790670bb4ef86134c1ba2d2d. 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/ARIXB2309326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cacb2923a2d58f0a0e09e8a28eb3f2247e6704286afb7196e9aa1e14e97c9fd. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/ARIXB2310010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9730053040ef9b8f843a5fa33a2aa8c19ebde6bec0371590669a940a84c50f3. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ARIXB2310680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492881b8617b8b49f8fa741e0b8b206622f8ac38194cfe2a92cb45c025e69a8a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:54:42Z), 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/QZGLS2448258.
Hoje Em Dia É Difícil Encontrar (Techengue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76fa879392728c351f428cece07329452f64b39810f4e2e5c616cfdfdd13962. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZGLS2502371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68443a365359c540ff17fbe7dac94ece66df6e142bdb9bda079e023aa765446. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:29:36Z), 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/QZNJW2516389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a52267f85e1f272540ca69a4284e15bc94dda7a706f46e6454ee7723a53286. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZNJY2517106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71565f07eb67199218134d46223fa6830f246161e385297f075ccaf1eea5c0c1. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZNJY2589502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a4822212c0ebf6f278574359d371985b4331d6b92b26a75dba1f4437baa09f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTPX2551529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe99e2cc1027380309cca8f460f045f2a0339240ee2668dcba0eeee1b28a83f5. 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/QZTVM2590626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6b0c2eb66f7a0b61ac069641381dec17f616047e8870d883c9f84367580e95. 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/BK4DA2321998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91e81c411707c64c9e9f0e44cb3379f3f59f5ee6cc6fe328e97aa16e0807773. 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/QZNJV2223535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243f82858170d7553fb6cf731968d584ccb88af36f625e3ff736ab5c47407d7b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNJX2289465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa81720d63c0f70538766583018f8f3ea971b4fa364288025d10d3994b01bbb. 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/QZMZ92219739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b71a31f8d7c2f2382aa8a0c66acc94bc9c0ccfee5d23e18157628ad992a0b7. 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/QM4TX1996155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389d0c48bbc49c3caf35c7b0ee685b77102e660d03d3edebfad7d727eb774041. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZNJX2289456.
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