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 0xcdee1a606cef09833681d417d08f78e2d52a66e8932dddbdf3747415c9830363. 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/5eb1e5d5-e180-4efc-b29f-4af8517538f8.json and https://artists.proofprofile.net/proofs/artist/5eb1e5d5-e180-4efc-b29f-4af8517538f8.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 0x00262e4b6851d53764f740363f0486a5a46881781d1a5b93cc218a6744957f8a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRD9I1800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99f7b27eefce1c4b285003b15e54a5afa240b7e103836469222124f1a30511b. 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/BRD9I1800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb623fad6323ca3d99a3b8e07b8cd65221b9551f52b31648be53a1f9a0de155bd. 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/BRD9I1800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dbd81c93bb9b0b34daa4e3410bc20eb53440cbe5e809f4e498522780d0c636. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BRD9I1800049.
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 0x188afaf06a5c0c09b535398e99e2fd56ae6cc5c295e792951affbea30fb9c4c3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BRD9I1800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3e7e8f49f2dd08d37ec3b1a99e8509e9f3c347de679af0765f497c23533159. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BRD9I1800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e87f2f2dfd1935c85f11e49fe5ce218b22af153a621df931aa47d493312105. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/BRD9I1800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59f7ef21efaf520272f81358ac93b837124997df3f46559b721582101f50579. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/BRD9I1800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6838f89d2b5e6e451bbd89b08d806f5c128cf615a050396001067fbd0fedab01. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRD9I1800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33486879b9cb387752d7655e3035dfcdfc8e20418d7846fdaf63dcb0584ef0ff. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRD9I1800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ba61c3c2860d38f1e6f9e411617b428da6287e5ccf8ed71cf9f66751dd4120. 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/BRD9I1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c91344b07ae356e6b1ed4da9caf0ae2716fcb9387d61c220fc1d628ec026d03. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/BRD9I1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7e405370b08589fa129b3d8b380aaa1b0df20f5c801f3771c2a910bd42e1cf. 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/BRD9I1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75af37f0e9be8df9256e051bd4534f4903f6c1d1466fccd41e98237fa23a9934. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BRD9I1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05b63185d71659dd8695296e108a66644cea1efacbd40f4f9bb250e54d71edf. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/BRD9I1800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b1feb70bbaf8377e3bb21f2e7f5ce9b4daa0bf76b886e7c455f86e1b98f042. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BRD9I1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4621a96c38c840ae347355e884a477c33aa1985c8cc2733c2053d02b15f239cb. 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/BRD9I1400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2af7688694959d392d35b26c20f6349021d69ef64f24deab7b6ab0da90fd55. 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/BRD9I0800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b78b40320042ba79790ac17be4c362ead623bc709657f0bd0e0e1808ce55378. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRD9I0800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379742c6092dc0c67d9053c29dba14ab59b31b783f7790aecfa5d62de2cb853d. 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/BRD9I0800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e53c8a9c75706a5c204e5738359ec961f714bb2ab2b913b602f72d067834cf. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BRD9I0800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcc806719ea99c00800f745d759cfad32ee51b99c59477a818b196d3c0c6a31. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BRD9I0800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9437fde64c16f70aca820c8e69a376b1add87c3ba38e2e3158703083b0686348. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/BRD9I0800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30ed733b39ea342782f625a8bf43a99b73c1ba2c92ba5437ad1a587fa131b65. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BRD9I0800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab57bd6b66b571c2725425fe176df086351e1fabdd2ba0574174739ed7aabcc. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/BRD9I0800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5ac0dc48e0b36ec70f77ea807d6efb16c5a79e7634a65bc4ed2106bd177bce. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/BRD9I0800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf20e5700039d255efce542e04c54fac0fbb78ef77c5b15e3612fa7d28ed0171. 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/BRD9I2100003.
Dani Gurgel e Novos Compositores - Pra Dar o Bote (Single)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23d57051d65b61d298d396520d9331b96cf68d69d29db2c1ff82dca47185a5b. 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/BRD9I1400002.