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 0x7e779e2ec772c7909730fb19d4c59df6338b3f0c1c33c0ee3a440edc7353f905. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a5096fe-2f9f-405a-97f9-c4c8511b4b7c.json and https://artists.proofprofile.net/proofs/artist/5a5096fe-2f9f-405a-97f9-c4c8511b4b7c.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 0x6191e9afb593b11ed4bdfa72a77d091e1b7627f09319b7baa2225c03a17af3a5. 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/PT2DY2100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc7ae10b0df627ae51fe13b81e742303f72cd8fd8f0a8c981a835fc98d2c64e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZTBA2318118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e3cd344f50aa81578faf95549488cf345a6b377a17baeb549bba179248b682. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTBA2318125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b688af4616f85c2882e12f80d55b10b2907d3ecb6660f3b83f1f12e682af4be. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PT2DY2300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b65df485f0996747186ab745b9b9fe51fe55e3a397de5107c80932a4372aaa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PT2DY2300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6976c12c8eef20ab0aff4ee2df99fac88e7bf347f14dc29f8158f6ac4cafa1c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PT2DY2300566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6caea559e54a86eeb1edfe1e91b7fb4f00b46711a0de72176a30775a5c3c30. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USANG2295381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8dc223c03dea0dac92cab06122afaba979ba5989d7a3b1ff107dd8399d50e8. 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/US3DF2231783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7034abf95206d9b6c275e7b61a5ed46db1252add703f2c6838f049de7053abd8. 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/PT2DY2200119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d7fb57283358417f3f19ff0789d4b2af8d3a0658ca1ba94b563e6565114020. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PT2DY2200127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa18551601da632905334179da3ddf81163429824ea71305e44be45bb126d65. 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/QZMEP2361423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24aeff36b03427f4e9a93cb622823852c9e5a9b318e9c149e2802145b5f73669. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL4CP2509402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e95b47f287a84b197585541efd0b25dde4c5256a5a7870d41cc279b2e2b7d8. 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/NL4CP2509278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075c5d38f04d1a20288d4b02084849d3ac115c2698481164ba8e07723deb909e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL4CP2512156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac9b0e0e1039e6d20bea013295fb461400a96c3b6387f54348012aec79507da. 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/NL4CP2512157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a7bd1b9db4bd49a2ed031a8896f690d1e11b7a29dba91954d9db669b36b215. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NL4CP2512160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e95b47f287a84b197585541efd0b25dde4c5256a5a7870d41cc279b2e2b7d8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NL4CP2509278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8497fa05a6bc7cdcb4f58f9675128cbc8e790754f637b5ff2087f5639a9da9. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/NL4CP2501209.
A TEMPO DE SER - UM INTERLÚDIO DE ANA REBOTIM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab47c69f6683f8bb5d9ad40d1e9cb3a482a91e54882d9d52a7971c302bb6d29. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZK6P2438956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c9d980693c13ace0d06a4c14d4901fcf7197402081c3f378dfa341b412413e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZFYY2274530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2858003d35bc18b4494dc9356b3ec8310e52303c894b09d6264d650ef7fbaed. 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/QZK6P2438963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44d67b74f9652f1cb9873ba346a3bb14b264f27c15d3e33d10ee41d22e332da. 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/QZTBF2455601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f05d9160f0043d3a6403ec3134968bbc73ccf09b8854057a22d3d5ee634473. 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/QZZ7R2450614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a90550c0b7a4d12bda0cdf1085a7f26203acc7a4b299287a39880de6d0230ad. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZZ7R2450615.