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 0x49441d2c6e6b4d3746190d91bf6625d9a2d047193b42a3d62a9b335834ea7c05. 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/e1baaae7-6677-4bcc-8b27-d30afee40880.json and https://artists.proofprofile.net/proofs/artist/e1baaae7-6677-4bcc-8b27-d30afee40880.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 0x4b0dbba4a0c750692a13cfb4024fed16ba804b723d58db654a1f505d99e60a46. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:39:44Z), 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/TCABR1339460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baa69409b8cdc583a5af4c115ec61b19ded805f4a7b9067583cf99c495320d5. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/TCADL1881882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad00872d0177c4ff2fff48c52763d2e00c46ab4e93dac1ce3e79db647b985324. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:17:19Z), 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/TCAFI2145629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f051663e5e4c23916e7cc0191a6993e8fa5381d37c78089c45b8e7d59a3a70. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCAFI2145649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa1ec916e81aeb63760079efcfc74aba735790dd235d8d1b68247da648a93f9. 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/TCAFI2145670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc789c3af9a5bb2ccd8510c6f573bfaad8344a8dafd65538542862cdfce22591b. 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/TCAFI2145747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f2d5ac94294e0e55254f2a9f8d2a8366075aedd0e04976e5ada1b45836473b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAFQ2115206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a7ee8dbf0ec98baea5ccadf1b29cbc2c2e10fc311b28e84fe08462a0c34aa9. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/TCAFR2189966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d92a435c2a3c5781601dade2be40df38dde1e83c8c7778d32572ff9a1165eb7. 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/TCAFR2190022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839c5dfe5e4e545fa2c06bb6cc6cf2fdf92ed45f70661b2c555e213b15fc79b7. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TCAGH2206809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ff89c10d9280ac95f35d0a35b954c73f9d0fbb0a5e310d81c2afbb9d3484d3. 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/TCAGS2374362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce511ce4d8b3e34f5c7b5ced333fb67af26a367bc081c74feedf2250123df90. 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/TCAGS2374424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd869f234142cb7732324408458e23f761cba2f7be248776578e57dc72861aef2. 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/TCAGS2374581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73416c487b7dbbf2194c9992f12f20979b46f0a32dbf4e3f1bafa7c369baf2c. 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/TCAGS2374683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadaa175069dad8af31658a4318fbeb0e954885baac76dc737f45f9bfaa83f3e8. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/TCAGS2374703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9040480cec158370b649b98121e5af349d32d09d7a55d69d2eb32bd41263bbd7. 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/TCAGS2374825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c2446e222c71e2ff12a56f496695dfe011a3e6423ed2f49cfaca22e1ab1131. 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/TCAGS2374861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0a39e4ecb28d350b009d36871afda19e16a0408f88cb6eb3764521acac05ce. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAGS2374908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95555f8cb9181c4419113a10dfc2d85951dfc61baf9e4eceb45d391f8cd5e7d2. 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/TCAID2405349.
Mas De Lo Que Pueda Soportar (Version Balada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425ba209fecf702d5081a1cd9b62f9f36bba50dbea355b0725753bde12c758d1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCAJR2557862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24ec4125e92fb93b2fd1e9855695298a93cd74185a059c01c6b65cf55ad77e3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAJU2531426.