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 0xdedabc5adfc2eb79e6a858164b91b0544a2f2603b28f173ccb73ebf0053170dd. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8cfbc65-3b3b-44f7-8670-c815b1f40a42.json and https://artists.proofprofile.net/proofs/artist/c8cfbc65-3b3b-44f7-8670-c815b1f40a42.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 0xf2ddef8ac16c8468b4fc5b65cc6dbb1b3c4e356db568b19fd94ee33fada7f2f0. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/QZNJY2411763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aba98e6f227efeddbd291dd8a4fb9858234feadaa6f75381b900daf24ad864a. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZNJY2411767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd51ae55b1e417230b95b2a678612a875de94b41b3a598186a818d1582f6bf71. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZNJY2411770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354de0ded50b5bf999f66fe37f5776fb19afbf57f83127685d73d47c6c00a7fd. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:26:13Z), 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/QZNJY2411771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c9c060aabe69e29c6c46628ace68f151ff7b1038dc9113a3f69f37130f5fe8. 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/QZNJY2411772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7545e8c202b661dc92f47a48c84e5490dbda75c4c0f0a067c80375a8a556dd88. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZNJY2411773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2134453dae06cc48b06a41a1f3038fa792d2c4deac5801e8b0aeab8c726bbb. 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/QZNJY2411774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76d73a1852120df91ebc4c35fde3aedbab33d31f7de6529aa77b2dc99162e54. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNJY2411775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbccb1256dc790b43674697f5fa4e25f383981710f8898197cd1ced1f69dd6f. 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/QZW9K2496009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0e2b980bfa5e4e3b431f2affde68b0607e3be617aac8affb830e71f1eeebff. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:30:11Z), 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/QZW9K2496010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c6dc3e78614c85431decfb25bcfb57c06c823708ada744fbb5c0cf9afeb0f1. 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/QZW9K2496011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d620986e8dac9792feed8ecca4919aea27a5cf598122cd903af52d1ceae99b. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZW9K2496015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48c34603f00635e6e6b0eb91f399ea1eae1e099c6b27e4519e15945a90b31a0. 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/QZW9K2496016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21729a7958380b63cd154b974752c660cfc01a855672ce7370bdab5a0811be73. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZW9K2496018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b0fb49e604e6697b1213451d89e3f3895ac5b5ed9a4a24e2b18bb97ca8eda5. 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/QZW9K2496019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cedfbedf1e8150c181fb65f7cdb8903e28afe241dbfd6f963515fd8617e9653. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZW9K2496020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936896065aae2e565abdec292717bc04f60dd3b1f74523867bf075da7b9b739d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:31:37Z), 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/QZW9L2427650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f2b023341e99821f331d17c9c25897b716253f187bf8d762f14612fae1aaf2. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZW9L2427651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c046e502008405b6fe8e199e148ce44b353067948adcc6d3c6a48bfd6607e73. 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/QZW9L2427652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fc36cb6a1d1d54283b149d25c6d7402c43db5d0633935c55cc9767c1151dc1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZW9L2427653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea8f5fb9b105dea9b0f7bfc2f5a07691fdef6b094e08b8e750140a1d0c50824. 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/QZW9L2427655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1942144b61f0c10b28a930afb8d0480b73017ece0698dd606fffe2dfd323aa67. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZW9L2427657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbd47d6ce8cf6effe7ba01de5248cbe1d8d4d3d8b03de491f45569ce015dfaa. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:10:51Z), 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/QZW9L2427658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eefc4f04e9204d3e919869a023a1e5e1a0c2f6fa3dedb6de9f5c1df7ff6b25. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/QZW9L2427659.
Maravitropix 4A Amor Ideal/Corazon de Piedra/Mamita/Tu y la Noche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3bfbbf4bba67995dab3644c0aa87e502602543e43232cd2ee4462905c8cb76. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZW9L2427661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfd64b062d7c452a1136c5e8192825b06aa544fedd33eec18e66c45578004b9. 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/MX2831907700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab44c3459ec36547d2a4d720fa898bb8c0dc01793786f2d6664586fcc44c4e0. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/MX2831907704.