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 0x12c9038122dc80d4c55d048a219f4457e0df7ff095ebebccf8c65c9821d4a71c. 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/15c661c5-8528-4d50-bb16-89fa1e2b2bc1.json and https://artists.proofprofile.net/proofs/artist/15c661c5-8528-4d50-bb16-89fa1e2b2bc1.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 0x5d2c707aa951e83ba4dcc10effb6852212671af9bb3dde828312bbffaf1dbe7a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZNJZ2361984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b3ebb53c5f6b422933bf578ac21e5de72acbd6b068fee9ab97f674a0eb249d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GXBAV2439152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af63039cbb46687bca9e98168ea39cd264fa224e05dcb52fba52103a84a60d0. 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/GXBAV2439156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b7a17f1c39dbd9b42fe2e3479bd4a83bacaaa4a8f953574081ca3ccfbfe18a. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GXBAV2479790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e76d2cd0a0f7311bf1a8ac03e1d002dc108be94e1cdf1f90387d1cd8c62bbc. 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/SGB502432229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bb4d2931fd18f3a6ac1d7be5b6c4f31edc0c18cc4db06c64df0e5d46bacbcb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GXD7G2431763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe769a66de9897e95e15f988be4be10df869a45bbe2d15e9a55be521a41fcd92. 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/GXD7G2431764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f073cf9c238aab30700b4eb8fcf342758218f3872674b6e21d364d523b07c97. 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/GXD7G2431761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228b04a6e92ea67eaeb7df21f5d5d842952d2fe7f615f030cc01ea4b38a8e3be. 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/GXD7G2431762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c7233e44fa9207834baed67148ca8b7ab86f4e6e3f3fd022bff2f85542ae97. 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/GXD7G2431759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4910426e73343d997d381b85a3a65752ad07cdee0e8bfb044a0441f3bbf5dd7c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GXD7G2431760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf1d5ee712fa291002a08e223a4ddbb318792a13bbc1ab6154955421041cf58. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/GXD7G2431765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eaf839437d1a0f79ca8bde42c8022f9ecaa506ddc982c1587877c68b84ec8a. 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/GXD7G2431766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0add5f0537ba4a8e58a34ac3a8d13f76ed20549311d6a70ba4c0782a1431672d. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GXD7G2459027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53d28798bb7bfc5d05391a7c1ab826e82daf0c7be8fad663f276d7616b1eec. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/GXD7V2294336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df645a43e7b8f97bd5bb4e2c632b2f3c5537563b5c0384f8d329f8f55bc4219. 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/GXD7V2433376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7433724e20d5e96255e707e64e37685c4add1e42eb9bf9af778b8a6479f8423. 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/AEA3A2438664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0302220e43a9ca7bd9322cc5bb0f1ac57c90dea57f1e54c020cae4b8d3fe9c5b. 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/AEA3A2467813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427cc225d059fb01d2627991a16ab026915ca8b3d0d36ac7ff43c3885b1d3856. 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/AEA3A2372589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703a04fd938256cd62bc5c1c6cc9e1c7254d401438f9f16ef4c8567d4c424016. 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/AEA3A2357090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3a0ec6a8337687708028215924bf905b2d767ae9a6644e9acd4650110fe79e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/AEA3A2379660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edba4af45f7e223bb9a7a6d791574cb284eb44e9dd926cd1d19ef955becf47e. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/AEA3A2393270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d521f8b14cff46f927f5d933f50a8515f5c1e7fad9008929b06710ca83fdeb0. 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/AEA3A2395230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f777ce0e3ae207dd568e692e3a79544ede62c2dd61d6badb1e183223f054cf. 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/GXD7G2276759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd568b25226e01eec5f9929566887db2dcc03e1cb5e71320e678622a4d317e438. 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/AEA3A2284985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9a5314bf621ac82106f0b2306f4af6fe78ca7be8f714d34ece10aaf54ab536. 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/QZW9L2419640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0d70e8808d648afe0d57ff9d14d4c8fe36d55b2278c2b237e7ed388e3450cf. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/AEA3A2212333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac853903c28c00544ad2c22b3553e265b2d6a76c4919c62600b00175b6c66e25. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/SGW502224490.
Senta No Dia 25 Senta No Dia Primeiro Também
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ac2f95a59821f699666405cd9d9b8cf6cd9f95cca5430f1286a578b9a14a55. 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/GXD7V2514166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ad5c3c88dda92457393c6f6515ba4475152c4b4ce2db539e5fca6110f5a1f0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GXBAV2188141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5964cf898b70311ad4585428664ec534416c5bc57aecfe0d43c82034ec8a8817. 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/GXBAV2174126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37054c412d999047a75dd61c3314fac5c8ce2bdac31eeb5dd97b5ffa2a3b7802. 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/GXBAV2008503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7ccc8540bfc1eca76dbb48861e70d01fa5d9ef316611c1fb88576e0140cf07. Chain 2 (Bitcoin): anchored in block 957791 (2026-07-13T02:46:19Z), 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/QT5M42580197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d76f7de743ec3f1aa0bd67e374e4492673851e1c3645f9e88ed5fc10038c53. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QT5M42518011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1eb4263e5babc671560079ae7bb07e51d6f3ff5d7b2da2f2b44dc63780c0a5. 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/BKY2C2500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c83ce4382ffc8711ff5eb72f6f572bf1715ddb111bd81dfe86f678143d6e38. 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/BKY2C2500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52189bb1446dadd15783fc444f1694f74a9deb9379d34fb53ca7323be5e87108. 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/GXBAV2516174.