1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xee1c93a4b2490f42cd378aa8d580111e02f404f9c31375eeb6f0fce5031207dd. 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/b4e351ab-c077-49a2-907d-3a32bce497c5.json and https://artists.proofprofile.net/proofs/artist/b4e351ab-c077-49a2-907d-3a32bce497c5.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 → block OTSBitcoinBlock must exist at that height 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 0x54cc2b0952f916abcb8b59456b08a38688d1f0b395416cec7a49834288f8df48. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZDA52181012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8987d0f0200fd1b7db75cd01b6820d19e7362a6ed83f3b36d6e9712870205a. 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/QZDA62136241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfd3d8135fb3e214b637ceed32ddd5e585a38b6780ac060fca56ec5c4a2adf1. 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/QZDA62136244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0e7240a770feac37492a18d2be2d668162987cc3052a0c39bc4ca869aacf8f. 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/QZDA62136246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a394bb6187ba489b51be8d5677d0158e7f746f65959205d36ebb9aeb5d2f4a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDA62136251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb9318b20a6205ba945c8adab61897c6e920571e691f3930163d411f7d0de66. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZDA62136260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fe0085ffebc497154e0de609a129f8ff27f44f03ffa42de7f19f6be566e1c5. 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/QZDA62134353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4643437a01757f74677bef24ed1441467d5be03b1e0193d1e123e1bce90eb1ba. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA62134363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58381ef3c1f63173ea73c9635145f1b4dde5956257ba0feeabdc6895df91adaf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA62134364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1701ba043f7de4bb62a4321a5d6fa6845ca316cdbef4d5b99d78e7d09b3df9d2. 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/QZDA62134366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cdb0510223af425172c01ac4a6599b20c105ac87fe7803343df5a3c7ffe274. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA62134369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86076662bfebc9b1f178f5485a25d862d4b91a575a82e8ae7be9372129437d2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZDA82195681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c542e1a20a9d927fdfced2775e7fbab8b3dd4cd816fcff02c4d8d5b0ea5cd4e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZDA82195696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30120f0d8524d60b73290d9b6958b249b9dbfd7da15913deae4d45f48070ba8. 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/QZES72102455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4ee3b635c7d8fb54ee5cf65747fafa316698894d4e32f92fe53d87c5d58a4e. 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/QZMEQ2155508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0143414a3cb4a473f5db8ef84829d2cb4c8e4d463416870716953728e040a94f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZFYZ2274322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7cfa2ad43754f5d34bccf4f2f00402c2a1745822f8d553b74f1b5c47464f70. 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/QZHN52317115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf6ea1d50c7ac5d9e7c8f359c974b29b9ef7e5a5104ec3fb1d02fdfc4ec4d7a. 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/QZHN52317117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d415319756b567de152ec3ff9a7207579ec0b944c69228033f75a8cc80cf6a9. 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/QZHN52317124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d5fe169486b72992d5a2e7afec3d7a4ed085fa0cd4bae42237b1600db1cfb0. 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/MX2832460311.
Believe You Can and You’re Halfway There
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6993d2c2d89bbc20ac2632ba682582eec51aa09a61da5633094c0feb034e1ea. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:26:29Z), 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/MX2832531514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffb87b470fa343b61fa3a99e6ba9424e2be82a5fa06fffa7ea88ff3297ea301. 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/MX2832531515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4317b714fa0ab1ad9691af5f31263a295883db4f72e567a82fe5fc34f290e3. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:23:56Z), 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/MX2832531516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c6049af1f3ebbf698006a0883a1f1e0be987d5f16d4ba77bb80d2db2d31ceb. 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/MX2832531517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ce81fd994449330e4b4b4eca350fcf8f0145a4088d11aa96f51bd1b90bd121. 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/MX2832531519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e00e2f45d98fab923b2004e8552dd356d2490378e40eb73fbf0942b2574874. 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/MX2832531523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f498845e18540d22b6abbf475b046080a433b6d5aee5d42e4cbbb2f349d1b4. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/MX2832595648.